{"product_id":"hkm-337747-multifunctional-waterproof-laptop-backpack-for-school-and-outdoor-use","title":"HKM-337747 Multifunctional Waterproof Laptop Backpack for School and Outdoor Use","description":"\u003cdiv id=\"hkm337747\" style=\"font-family: Arial, Helvetica, sans-serif; max-width: 1200px; margin: 0 auto; padding: 0 16px; color: #1a1a1a; line-height: 1.5; background: #ffffff; -webkit-tap-highlight-color: transparent;\"\u003e\n    \u003cstyle\u003e\n        #hkm337747 * { box-sizing: border-box; margin: 0; padding: 0; }\n        #hkm337747 h2, #hkm337747 h3, #hkm337747 h4, #hkm337747 p, #hkm337747 li, #hkm337747 summary, #hkm337747 span, #hkm337747 div { color: #1a1a1a; }\n        #hkm337747 .section { margin: 48px 0; }\n        #hkm337747 .flex { display: flex; flex-wrap: wrap; gap: 24px; align-items: stretch; }\n        #hkm337747 .col2 { flex: 1 1 calc(50% - 24px); min-width: 280px; }\n        #hkm337747 .col1 { flex: 1 1 100%; }\n        \/* 电脑端字体大小 *\/\n        #hkm337747 .title-1 { font-size: 28px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 12px; color: #002D72; }\n        #hkm337747 .title-2 { font-size: 22px; font-weight: 700; margin-bottom: 16px; color: #003087; }\n        #hkm337747 .title-3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: #1a1a1a; }\n        #hkm337747 .text-large { font-size: 16px; line-height: 1.6; margin-bottom: 12px; }\n        #hkm337747 .text-medium { font-size: 15px; line-height: 1.55; margin-bottom: 10px; }\n        #hkm337747 .text-small { font-size: 13px; line-height: 1.5; color: #4d4d4d; }\n        #hkm337747 .feature-icon { width: 48px; height: 48px; transition: transform 0.2s ease, opacity 0.2s ease; cursor: default; }\n        #hkm337747 .feature-card:hover .feature-icon { transform: scale(1.1); opacity: 0.85; }\n        #hkm337747 .feature-card { background: #f9fcff; border: 1px solid #e6f0fa; border-radius: 12px; padding: 20px; transition: box-shadow 0.25s ease, border-color 0.25s ease; }\n        #hkm337747 .feature-card:hover { box-shadow: 0 8px 20px rgba(0,45,114,0.08); border-color: #b3d4ff; }\n        #hkm337747 .spec-row { display: flex; flex-wrap: wrap; border-bottom: 1px solid #e6e9ed; padding: 12px 0; align-items: center; }\n        #hkm337747 .spec-label { flex: 0 0 160px; font-weight: 600; font-size: 14px; color: #002D72; display: flex; align-items: center; gap: 8px; }\n        #hkm337747 .spec-value { flex: 1; font-size: 15px; }\n        #hkm337747 .policy-box { background: #f2f7ff; border-radius: 16px; padding: 28px; display: flex; flex-wrap: wrap; gap: 20px; }\n        #hkm337747 .policy-item { flex: 1 1 calc(50% - 20px); display: flex; align-items: center; gap: 12px; font-size: 15px; font-weight: 500; }\n        #hkm337747 .badge { display: inline-block; background: #003087; color: #fff; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 20px; margin-left: 8px; vertical-align: middle; }\n        #hkm337747 .highlight { color: #003087; font-weight: 600; }\n        #hkm337747 details { margin-bottom: 16px; background: #f9fcff; border: 1px solid #e0eaf5; border-radius: 10px; padding: 14px 20px; transition: all 0.2s ease; }\n        #hkm337747 details[open] { background: #ffffff; box-shadow: 0 4px 12px rgba(0,51,160,0.05); }\n        #hkm337747 summary { font-size: 16px; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; color: #003087; }\n        #hkm337747 summary::-webkit-details-marker { display: none; }\n        #hkm337747 summary::after { content: \"▸\"; font-size: 18px; transition: transform 0.2s; color: #003087; margin-left: 12px; }\n        #hkm337747 details[open] summary::after { transform: rotate(90deg); }\n        #hkm337747 .divider { border-top: 1px solid #dfe6ed; margin: 32px 0; }\n        \/* 手机端字体和布局覆盖 *\/\n        @media (max-width: 768px) {\n            #hkm337747 .col2 { flex: 1 1 100%; }\n            #hkm337747 .title-1 { font-size: 24px; }\n            #hkm337747 .title-2 { font-size: 20px; }\n            #hkm337747 .title-3 { font-size: 16px; }\n            #hkm337747 .text-large { font-size: 15px; }\n            #hkm337747 .text-medium { font-size: 14px; }\n            #hkm337747 .text-small { font-size: 12px; }\n            #hkm337747 .spec-label { flex: 0 0 130px; font-size: 13px; }\n            #hkm337747 .spec-value { font-size: 14px; }\n            #hkm337747 .feature-card { padding: 16px; }\n            #hkm337747 .policy-item { flex: 1 1 100%; font-size: 14px; }\n            #hkm337747 summary { font-size: 15px; }\n        }\n        @media (max-width: 480px) {\n            #hkm337747 .title-1 { font-size: 22px; }\n            #hkm337747 .title-2 { font-size: 18px; }\n            #hkm337747 .text-large { font-size: 14px; }\n            #hkm337747 .spec-label { flex: 0 0 110px; font-size: 12px; }\n        }\n    \u003c\/style\u003e\n\n    \u003c!-- 产品概述 --\u003e\n    \u003cdiv class=\"section\" style=\"text-align: left;\"\u003e\n        \u003ch1 class=\"title-1\"\u003eHKM-337747 Multifunctional Waterproof Laptop Backpack\u003c\/h1\u003e\n        \u003cp class=\"text-large\" style=\"max-width: 800px;\"\u003eEngineered for the intersection of campus life, professional commutes, and weekend trails, the HKM-337747 delivers uncompromising protection for your tech, intelligent organization, and a modern silhouette that fits right in from lecture hall to mountain path. Every detail — from the waterproof fabric to the ventilated harness — was refined to keep you moving comfortably, without ever having to check the weather.\u003c\/p\u003e\n        \u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 24px; margin-top: 24px;\"\u003e\n            \u003cdiv style=\"display: flex; align-items: center; gap: 8px;\"\u003e\n\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2\"\u003e\u003crect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cline x1=\"9\" y1=\"9\" x2=\"15\" y2=\"9\"\u003e\u003c\/line\u003e\u003cline x1=\"9\" y1=\"13\" x2=\"15\" y2=\"13\"\u003e\u003c\/line\u003e\u003cline x1=\"9\" y1=\"17\" x2=\"13\" y2=\"17\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003cspan class=\"text-medium\" style=\"margin:0;\"\u003eFits up to 15.6″ laptop\u003c\/span\u003e\n\u003c\/div\u003e\n            \u003cdiv style=\"display: flex; align-items: center; gap: 8px;\"\u003e\n\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2\"\u003e\u003cpath d=\"M12 2L15 9H22L16 14L18 21L12 17L6 21L8 14L2 9H9L12 2Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003cspan class=\"text-medium\" style=\"margin:0;\"\u003eWaterproof construction\u003c\/span\u003e\n\u003c\/div\u003e\n            \u003cdiv style=\"display: flex; align-items: center; gap: 8px;\"\u003e\n\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cpolyline points=\"12 6 12 12 16 14\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003cspan class=\"text-medium\" style=\"margin:0;\"\u003eErgonomic comfort system\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- 核心特性图标网格 --\u003e\n    \u003cdiv class=\"section\"\u003e\n        \u003ch2 class=\"title-2\" style=\"text-align: left;\"\u003eKEY FEATURES\u003c\/h2\u003e\n        \u003cdiv class=\"flex\"\u003e\n            \u003cdiv class=\"col2 feature-card\"\u003e\n                \u003csvg class=\"feature-icon\" viewbox=\"0 0 64 64\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.5\"\u003e\n                    \u003cpath d=\"M16 44 L16 16 L48 16 L48 44 Z\" stroke-linejoin=\"round\"\u003e\u003c\/path\u003e\n                    \u003cpath d=\"M16 44 C16 52 48 52 48 44\"\u003e\u003c\/path\u003e\n                    \u003cline x1=\"20\" y1=\"24\" x2=\"44\" y2=\"24\" stroke=\"#003087\" opacity=\"0.7\"\u003e\u003c\/line\u003e\n                    \u003cline x1=\"20\" y1=\"30\" x2=\"40\" y2=\"30\" stroke=\"#003087\" opacity=\"0.7\"\u003e\u003c\/line\u003e\n                    \u003ccircle cx=\"48\" cy=\"20\" r=\"4\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\n                    \u003cpath d=\"M44 20 L46 22 L50 16\" stroke=\"#fff\" stroke-width=\"2\" fill=\"none\"\u003e\u003c\/path\u003e\n                \u003c\/svg\u003e\n                \u003ch3 class=\"title-3\"\u003eAdvanced Waterproof Protection\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eConstructed with high-density 600D polyester fabric treated with a durable water-repellent (DWR) coating, complemented by sealed YKK zippers. Your gear stays dry through sudden downpours, misty trails, or accidental spills, without adding unnecessary weight.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"col2 feature-card\"\u003e\n                \u003csvg class=\"feature-icon\" viewbox=\"0 0 64 64\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.5\"\u003e\n                    \u003crect x=\"10\" y=\"14\" width=\"44\" height=\"30\" rx=\"3\"\u003e\u003c\/rect\u003e\n                    \u003crect x=\"16\" y=\"18\" width=\"32\" height=\"22\" rx=\"1.5\" stroke-opacity=\"0.6\"\u003e\u003c\/rect\u003e\n                    \u003cline x1=\"22\" y1=\"36\" x2=\"42\" y2=\"36\" stroke=\"#003087\" opacity=\"0.7\"\u003e\u003c\/line\u003e\n                    \u003cline x1=\"22\" y1=\"40\" x2=\"38\" y2=\"40\" stroke=\"#003087\" opacity=\"0.7\"\u003e\u003c\/line\u003e\n                    \u003crect x=\"26\" y=\"44\" width=\"12\" height=\"3\" rx=\"1.5\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/rect\u003e\n                    \u003ccircle cx=\"36\" cy=\"12\" r=\"2\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\n                \u003c\/svg\u003e\n                \u003ch3 class=\"title-3\"\u003ePadded Laptop \u0026amp; Tablet Compartment\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eA suspended, impact-absorbing sleeve cradles laptops up to 15.6 inches, while a separate fleece-lined pocket secures a tablet or e-reader. The false-bottom design lifts your device above the bag floor, shielding it from drops when you set the pack down too quickly.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"col2 feature-card\"\u003e\n                \u003csvg class=\"feature-icon\" viewbox=\"0 0 64 64\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.2\"\u003e\n                    \u003cpath d=\"M18 20 C18 12 46 12 46 20 C46 28 50 28 50 36 C50 50 14 50 14 36 C14 28 18 28 18 20 Z\"\u003e\u003c\/path\u003e\n                    \u003ccircle cx=\"32\" cy=\"42\" r=\"3\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\n                    \u003cpath d=\"M28 54 L36 54\" stroke=\"#003087\" stroke-width=\"3\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n                    \u003cpath d=\"M22 54 L26 50 M42 54 L38 50\" stroke=\"#003087\" stroke-width=\"2.5\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n                    \u003cline x1=\"32\" y1=\"20\" x2=\"32\" y2=\"34\" stroke=\"#003087\" opacity=\"0.6\"\u003e\u003c\/line\u003e\n                \u003c\/svg\u003e\n                \u003ch3 class=\"title-3\"\u003eErgonomic Airflow Harness\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eS-shaped shoulder straps with multi-layer foam and a breathable mesh back panel conform to your body while promoting air circulation. An adjustable sternum strap and removable waist belt distribute load across your torso, reducing shoulder fatigue during long carries.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"col2 feature-card\"\u003e\n                \u003csvg class=\"feature-icon\" viewbox=\"0 0 64 64\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.2\"\u003e\n                    \u003crect x=\"10\" y=\"20\" width=\"44\" height=\"36\" rx=\"6\"\u003e\u003c\/rect\u003e\n                    \u003cline x1=\"32\" y1=\"20\" x2=\"32\" y2=\"56\" stroke=\"#003087\" opacity=\"0.5\"\u003e\u003c\/line\u003e\n                    \u003cline x1=\"20\" y1=\"20\" x2=\"20\" y2=\"40\" stroke=\"#003087\" opacity=\"0.5\"\u003e\u003c\/line\u003e\n                    \u003cline x1=\"44\" y1=\"20\" x2=\"44\" y2=\"40\" stroke=\"#003087\" opacity=\"0.5\"\u003e\u003c\/line\u003e\n                    \u003crect x=\"16\" y=\"26\" width=\"6\" height=\"4\" rx=\"1.5\" fill=\"#003087\" stroke=\"none\" opacity=\"0.8\"\u003e\u003c\/rect\u003e\n                    \u003crect x=\"26\" y=\"26\" width=\"6\" height=\"4\" rx=\"1.5\" fill=\"#003087\" stroke=\"none\" opacity=\"0.8\"\u003e\u003c\/rect\u003e\n                    \u003crect x=\"38\" y=\"26\" width=\"8\" height=\"4\" rx=\"1.5\" fill=\"#003087\" stroke=\"none\" opacity=\"0.8\"\u003e\u003c\/rect\u003e\n                    \u003cpath d=\"M20 46 L28 46 M38 46 L44 46\" stroke=\"#003087\" opacity=\"0.5\"\u003e\u003c\/path\u003e\n                \u003c\/svg\u003e\n                \u003ch3 class=\"title-3\"\u003e21 Intelligent Compartments\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eOver twenty thoughtfully placed pockets, including a quick-access front organizer for pens, keys, and power bank, a hidden anti-theft rear pocket for wallet and passport, and side mesh sleeves for water bottles or umbrella. Never dig blindly again.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"col2 feature-card\"\u003e\n                \u003csvg class=\"feature-icon\" viewbox=\"0 0 64 64\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.2\"\u003e\n                    \u003cpath d=\"M20 40 L20 20 L44 20 L44 40\"\u003e\u003c\/path\u003e\n                    \u003crect x=\"24\" y=\"22\" width=\"16\" height=\"10\" rx=\"2\"\u003e\u003c\/rect\u003e\n                    \u003cline x1=\"32\" y1=\"32\" x2=\"32\" y2=\"40\" stroke=\"#003087\"\u003e\u003c\/line\u003e\n                    \u003ccircle cx=\"32\" cy=\"44\" r=\"4\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\n                    \u003cpath d=\"M44 28 L52 28 L52 48 L44 48\" stroke=\"#003087\" opacity=\"0.7\"\u003e\u003c\/path\u003e\n                    \u003cline x1=\"48\" y1=\"28\" x2=\"48\" y2=\"34\" stroke=\"#003087\"\u003e\u003c\/line\u003e\n                \u003c\/svg\u003e\n                \u003ch3 class=\"title-3\"\u003eIntegrated USB Charging Port\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eA built-in external USB port with internal cable routing keeps your phone charged on the move. Simply connect your own power bank inside, and never search for a wall outlet in the middle of a busy commute or trail rest stop again.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"col2 feature-card\"\u003e\n                \u003csvg class=\"feature-icon\" viewbox=\"0 0 64 64\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.2\"\u003e\n                    \u003crect x=\"16\" y=\"10\" width=\"32\" height=\"48\" rx=\"5\"\u003e\u003c\/rect\u003e\n                    \u003crect x=\"20\" y=\"18\" width=\"24\" height=\"14\" rx=\"2\" stroke-opacity=\"0.6\"\u003e\u003c\/rect\u003e\n                    \u003cpath d=\"M22 44 L30 44 M34 44 L42 44\" stroke=\"#003087\" opacity=\"0.6\"\u003e\u003c\/path\u003e\n                    \u003cpath d=\"M22 50 L26 50 M30 50 L38 50\" stroke=\"#003087\" opacity=\"0.6\"\u003e\u003c\/path\u003e\n                    \u003ccircle cx=\"44\" cy=\"14\" r=\"3\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\n                    \u003cpath d=\"M14 34 C14 24 50 24 50 34\" stroke=\"#003087\" opacity=\"0.8\"\u003e\u003c\/path\u003e\n                    \u003ccircle cx=\"14\" cy=\"34\" r=\"2\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\n                    \u003ccircle cx=\"50\" cy=\"34\" r=\"2\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\n                \u003c\/svg\u003e\n                \u003ch3 class=\"title-3\"\u003eAnti‑Theft \u0026amp; Travel‑Ready\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eA concealed back pocket secures valuables against pickpockets, while the luggage pass‑through strap slides over rolling suitcase handles for seamless airport navigation. Reflective accents on the front and straps increase visibility during low‑light urban rides.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"col2 feature-card\"\u003e\n                \u003csvg class=\"feature-icon\" viewbox=\"0 0 64 64\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.2\"\u003e\n                    \u003cpath d=\"M12 44 L12 20 Q12 12 20 12 L44 12 Q52 12 52 20 L52 44 Q52 52 44 52 L20 52 Q12 52 12 44 Z\"\u003e\u003c\/path\u003e\n                    \u003cpath d=\"M16 24 L28 24 L28 36 L16 36 Z\" stroke-opacity=\"0.5\"\u003e\u003c\/path\u003e\n                    \u003cpath d=\"M36 24 L48 24 L48 36 L36 36 Z\" stroke-opacity=\"0.5\"\u003e\u003c\/path\u003e\n                    \u003cline x1=\"28\" y1=\"30\" x2=\"36\" y2=\"30\" stroke=\"#003087\" opacity=\"0.8\"\u003e\u003c\/line\u003e\n                    \u003ccircle cx=\"22\" cy=\"30\" r=\"2\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\n                    \u003ccircle cx=\"42\" cy=\"30\" r=\"2\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\n                \u003c\/svg\u003e\n                \u003ch3 class=\"title-3\"\u003eMilitary‑Grade Durability\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eEvery stress point is bar‑tacked, and the base is reinforced with a waterproof TPU panel to resist abrasion from rough surfaces. YKK zippers with reverse coil design prevent snagging, ensuring smooth operation for years, whether on gravel or in crowded subways.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- 规格表 --\u003e\n    \u003cdiv class=\"section\"\u003e\n        \u003ch2 class=\"title-2\"\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n        \u003cdiv style=\"background: #ffffff; border: 1px solid #dfe6ed; border-radius: 12px; padding: 20px 24px;\"\u003e\n            \u003cdiv class=\"spec-row\"\u003e\n                \u003cdiv class=\"spec-label\"\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#002D72\" stroke-width=\"2\"\u003e\u003crect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cline x1=\"9\" y1=\"9\" x2=\"15\" y2=\"9\"\u003e\u003c\/line\u003e\u003cline x1=\"9\" y1=\"13\" x2=\"15\" y2=\"13\"\u003e\u003c\/line\u003e\u003c\/svg\u003e Laptop Fit\u003c\/div\u003e\n                \u003cdiv class=\"spec-value\"\u003eUp to 15.6″ (diagonal) — max dimensions 15.4 x 10.6 x 1.2 in (39.1 x 26.9 x 3.0 cm)\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-row\"\u003e\n                \u003cdiv class=\"spec-label\"\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#002D72\" stroke-width=\"2\"\u003e\u003crect x=\"3\" y=\"5\" width=\"18\" height=\"14\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cline x1=\"3\" y1=\"10\" x2=\"21\" y2=\"10\"\u003e\u003c\/line\u003e\u003c\/svg\u003e Tablet Sleeve\u003c\/div\u003e\n                \u003cdiv class=\"spec-value\"\u003eFits iPad Pro 12.9″ or most 13″ tablets; fleece‑lined, separate access\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-row\"\u003e\n                \u003cdiv class=\"spec-label\"\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#002D72\" stroke-width=\"2\"\u003e\u003cpath d=\"M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Volume\u003c\/div\u003e\n                \u003cdiv class=\"spec-value\"\u003e28 L (1,710 cu in) total capacity, expandable via compression straps\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-row\"\u003e\n                \u003cdiv class=\"spec-label\"\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#002D72\" stroke-width=\"2\"\u003e\u003cline x1=\"2\" y1=\"12\" x2=\"22\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"12\" y1=\"2\" x2=\"12\" y2=\"22\"\u003e\u003c\/line\u003e\u003crect x=\"6\" y=\"4\" width=\"12\" height=\"16\" rx=\"1\"\u003e\u003c\/rect\u003e\u003c\/svg\u003e External Dimensions\u003c\/div\u003e\n                \u003cdiv class=\"spec-value\"\u003e18.9 x 13.4 x 7.9 in (48.0 x 34.0 x 20.0 cm) — carry‑on compliant for most airlines\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-row\"\u003e\n                \u003cdiv class=\"spec-label\"\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#002D72\" stroke-width=\"2\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cline x1=\"12\" y1=\"6\" x2=\"12\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"12\" y1=\"12\" x2=\"16\" y2=\"14\"\u003e\u003c\/line\u003e\u003c\/svg\u003e Weight\u003c\/div\u003e\n                \u003cdiv class=\"spec-value\"\u003e2.0 lbs (0.91 kg) — ultra‑light for daily carry without sacrificing protection\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-row\"\u003e\n                \u003cdiv class=\"spec-label\"\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#002D72\" stroke-width=\"2\"\u003e\u003cpath d=\"M12 2L2 7l10 5 10-5-10-5z\"\u003e\u003c\/path\u003e\u003cpath d=\"M2 17l10 5 10-5\"\u003e\u003c\/path\u003e\u003cpath d=\"M2 12l10 5 10-5\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Main Material\u003c\/div\u003e\n                \u003cdiv class=\"spec-value\"\u003e600D polyester with TPU laminate + DWR finish; YKK® zippers; Duraflex® buckles\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-row\"\u003e\n                \u003cdiv class=\"spec-label\"\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#002D72\" stroke-width=\"2\"\u003e\u003cpath d=\"M20 16.2A7.6 7.6 0 0 1 12 20a7.6 7.6 0 0 1-8-3.8\"\u003e\u003c\/path\u003e\u003cpolyline points=\"10 2 10 6 14 6 14 2\"\u003e\u003c\/polyline\u003e\u003cpath d=\"M10 6l-4 4h12l-4-4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Waterproof Rating\u003c\/div\u003e\n                \u003cdiv class=\"spec-value\"\u003eIPX4 fabric rating (rain‑resistant in moderate conditions); sealed zippers shed water for 30+ min exposure\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-row\"\u003e\n                \u003cdiv class=\"spec-label\"\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#002D72\" stroke-width=\"2\"\u003e\u003cpath d=\"M13 2L3 14h9l-1 8 10-12h-9l1-8z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e USB Port\u003c\/div\u003e\n                \u003cdiv class=\"spec-value\"\u003eExternal USB 3.0 Type‑A port (cable not included; power bank not included)\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"spec-row\" style=\"border-bottom: none;\"\u003e\n                \u003cdiv class=\"spec-label\"\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#002D72\" stroke-width=\"2\"\u003e\u003crect x=\"3\" y=\"8\" width=\"18\" height=\"12\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cpath d=\"M7 12h.01M11 12h.01M15 12h.01\"\u003e\u003c\/path\u003e\u003ccircle cx=\"19\" cy=\"8\" r=\"1.5\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\u003c\/svg\u003e Warranty\u003c\/div\u003e\n                \u003cdiv class=\"spec-value\"\u003e24‑month global warranty; lifetime support for manufacturing defects\u003c\/div\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- 场景与优势 --\u003e\n    \u003cdiv class=\"section\"\u003e\n        \u003ch2 class=\"title-2\"\u003eDESIGNED FOR EVERY PACE\u003c\/h2\u003e\n        \u003cdiv class=\"flex\"\u003e\n            \u003cdiv class=\"col2\" style=\"background: #f9fcff; border-radius: 12px; padding: 20px;\"\u003e\n                \u003ch3 class=\"title-3\" style=\"display: flex; align-items: center; gap: 8px;\"\u003e\n\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2\"\u003e\u003cpath d=\"M4 19.5A2.5 2.5 0 0 1 6.5 17H20\"\u003e\u003c\/path\u003e\u003cpath d=\"M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Campus \u0026amp; Study\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eDedicated pockets for textbooks, notebooks, calculator, and a padded laptop compartment protect your academic investment. The USB port keeps your phone alive during marathon library sessions, while the luggage strap lets you dash between classes and the airport for that semester abroad.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"col2\" style=\"background: #f9fcff; border-radius: 12px; padding: 20px;\"\u003e\n                \u003ch3 class=\"title-3\" style=\"display: flex; align-items: center; gap: 8px;\"\u003e\n\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2\"\u003e\u003crect x=\"1\" y=\"4\" width=\"22\" height=\"16\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cline x1=\"5\" y1=\"8\" x2=\"19\" y2=\"8\"\u003e\u003c\/line\u003e\u003cline x1=\"5\" y1=\"12\" x2=\"17\" y2=\"12\"\u003e\u003c\/line\u003e\u003c\/svg\u003e Professional Commute\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eA sleek, minimalist exterior with internal file dividers keeps documents crisp. The anti‑theft rear pocket holds your wallet and phone safely on crowded trains, while the luggage pass‑through streamlines business trips. The waterproof shell protects presentation materials even when caught in rain between meetings.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"col2\" style=\"background: #f9fcff; border-radius: 12px; padding: 20px;\"\u003e\n                \u003ch3 class=\"title-3\" style=\"display: flex; align-items: center; gap: 8px;\"\u003e\n\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2\"\u003e\u003cpath d=\"M17 10l-5-5-5 5\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 5v14\"\u003e\u003c\/path\u003e\u003ccircle cx=\"12\" cy=\"3\" r=\"1.5\" fill=\"#003087\" stroke=\"none\"\u003e\u003c\/circle\u003e\u003cpath d=\"M5 14v4a2 2 0 0 0 2 2h10a2 2 0 0 0 2-2v-4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e Outdoor \u0026amp; Adventure\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eBreathable back panel and sternum strap stabilize the load on uneven terrain. Side compression straps cinch the pack tight for scrambling, and the waterproof TPU base withstands muddy ground. Reflective safety details keep you visible when dusk catches you on the trail.\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"col2\" style=\"background: #f9fcff; border-radius: 12px; padding: 20px;\"\u003e\n                \u003ch3 class=\"title-3\" style=\"display: flex; align-items: center; gap: 8px;\"\u003e\n\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cpolyline points=\"12 6 12 12 16 14\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e Daily Versatility\u003c\/h3\u003e\n                \u003cp class=\"text-medium\"\u003eFrom gym clothes to a weekend change, the 28L main cavity swallows it all. Interior mesh pockets separate damp items, while the water bottle sleeves keep hydration handy. This is the one pack that replaces your collection — without looking out of place anywhere.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- 数据亮点与科技优势 --\u003e\n    \u003cdiv class=\"section\"\u003e\n        \u003ch2 class=\"title-2\"\u003eWHY THE HKM-337747 OUTPERFORMS\u003c\/h2\u003e\n        \u003cdiv class=\"flex\" style=\"margin-top: 16px;\"\u003e\n            \u003cdiv style=\"flex: 1 1 200px; text-align: center; padding: 16px;\"\u003e\n                \u003cdiv style=\"font-size: 36px; font-weight: 700; color: #003087;\"\u003e21+\u003c\/div\u003e\n                \u003cdiv class=\"text-medium\" style=\"margin-top: 4px;\"\u003eOrganizational Zones\u003c\/div\u003e\n                \u003cp class=\"text-small\"\u003evs. industry average of 8–12 pockets in similar capacity packs\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv style=\"flex: 1 1 200px; text-align: center; padding: 16px;\"\u003e\n                \u003cdiv style=\"font-size: 36px; font-weight: 700; color: #003087;\"\u003e30%\u003c\/div\u003e\n                \u003cdiv class=\"text-medium\" style=\"margin-top: 4px;\"\u003eLighter than competitors\u003c\/div\u003e\n                \u003cp class=\"text-small\"\u003eOnly 2.0 lbs vs. 2.9 lbs average for waterproof 28L backpacks\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv style=\"flex: 1 1 200px; text-align: center; padding: 16px;\"\u003e\n                \u003cdiv style=\"font-size: 36px; font-weight: 700; color: #003087;\"\u003e0.8 in\u003c\/div\u003e\n                \u003cdiv class=\"text-medium\" style=\"margin-top: 4px;\"\u003eFalse‑bottom clearance\u003c\/div\u003e\n                \u003cp class=\"text-small\"\u003eSuspended laptop sleeve absorbs impacts that would otherwise dent device corners\u003c\/p\u003e\n            \u003c\/div\u003e\n            \u003cdiv style=\"flex: 1 1 200px; text-align: center; padding: 16px;\"\u003e\n                \u003cdiv style=\"font-size: 36px; font-weight: 700; color: #003087;\"\u003e4‑way\u003c\/div\u003e\n                \u003cdiv class=\"text-medium\" style=\"margin-top: 4px;\"\u003eVentilation channels\u003c\/div\u003e\n                \u003cp class=\"text-small\"\u003eAirflow back panel reduces skin temperature by up to 4°F vs. flat foam backs\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- FAQ 可展开 --\u003e\n    \u003cdiv class=\"section\"\u003e\n        \u003ch2 class=\"title-2\"\u003eFREQUENTLY ASKED QUESTIONS\u003c\/h2\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eIs this backpack truly waterproof?\u003c\/summary\u003e\n            \u003cp class=\"text-medium\" style=\"margin-top: 12px;\"\u003eThe HKM-337747 uses a DWR‑coated 600D polyester exterior and sealed YKK zippers to achieve an IPX4 rain‑resistance level. It withstands moderate rain and splashes for over 30 minutes without water ingress. It is not designed for full submersion. For heavy downpours, we recommend using the built‑in rain cover loop (rain cover sold separately).\u003c\/p\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eWill a 15.6″ gaming laptop with a thick chassis fit?\u003c\/summary\u003e\n            \u003cp class=\"text-medium\" style=\"margin-top: 12px;\"\u003eYes, the padded compartment accommodates laptops up to 15.4 x 10.6 x 1.2 in (39.1 x 26.9 x 3.0 cm). Most 15.6″ gaming models with standard profiles fit comfortably. We recommend measuring your device if it exceeds 1.2 inches in thickness; in that case the main compartment can still hold it, but the dedicated sleeve may be snug.\u003c\/p\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eDoes the USB port include a battery?\u003c\/summary\u003e\n            \u003cp class=\"text-medium\" style=\"margin-top: 12px;\"\u003eThe external USB port is a pass‑through connection only. You connect your own power bank internally via the included short cable. This design allows you to swap power banks easily and comply with airline regulations, since no integrated battery is present.\u003c\/p\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eHow do I clean the backpack?\u003c\/summary\u003e\n            \u003cp class=\"text-medium\" style=\"margin-top: 12px;\"\u003eWipe the exterior with a damp cloth and mild soap. Do not machine wash or dry clean, as this may degrade the waterproof coating. For stubborn stains, use a soft brush. Allow to air dry completely before storing.\u003c\/p\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eIs there a sternum strap whistle or safety feature?\u003c\/summary\u003e\n            \u003cp class=\"text-medium\" style=\"margin-top: 12px;\"\u003eThe sternum strap buckle includes an integrated emergency whistle. Additionally, reflective accents on the shoulder straps and front panel provide 360° visibility in low‑light conditions.\u003c\/p\u003e\n        \u003c\/details\u003e\n        \u003cdetails\u003e\n            \u003csummary\u003eCan this backpack stand upright on its own?\u003c\/summary\u003e\n            \u003cp class=\"text-medium\" style=\"margin-top: 12px;\"\u003eYes, the reinforced TPU base provides a flat, stable platform. When packed evenly, the bag remains upright on most surfaces, reducing the risk of tipping and keeping your gear organized.\u003c\/p\u003e\n        \u003c\/details\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- 政策区域 --\u003e\n    \u003cdiv class=\"section\"\u003e\n        \u003cdiv class=\"policy-box\"\u003e\n            \u003cdiv class=\"policy-item\"\u003e\n                \u003csvg width=\"32\" height=\"32\" viewbox=\"0 0 48 48\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.5\"\u003e\n                    \u003ccircle cx=\"24\" cy=\"24\" r=\"20\"\u003e\u003c\/circle\u003e\n                    \u003cpolyline points=\"34 16 20 32 14 24\"\u003e\u003c\/polyline\u003e\n                \u003c\/svg\u003e\n                \u003cdiv\u003e\n\u003cstrong\u003eFree Shipping\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"text-small\"\u003eOn all orders, no minimums. Fast, reliable delivery.\u003c\/span\u003e\n\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"policy-item\"\u003e\n                \u003csvg width=\"32\" height=\"32\" viewbox=\"0 0 48 48\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.5\"\u003e\n                    \u003crect x=\"6\" y=\"12\" width=\"36\" height=\"28\" rx=\"4\"\u003e\u003c\/rect\u003e\n                    \u003cline x1=\"6\" y1=\"20\" x2=\"42\" y2=\"20\"\u003e\u003c\/line\u003e\n                    \u003cline x1=\"18\" y1=\"30\" x2=\"30\" y2=\"30\"\u003e\u003c\/line\u003e\n                    \u003cline x1=\"18\" y1=\"36\" x2=\"28\" y2=\"36\"\u003e\u003c\/line\u003e\n                \u003c\/svg\u003e\n                \u003cdiv\u003e\n\u003cstrong\u003e180-Day Purchase Protection\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"text-small\"\u003eShop with confidence. Extended care covers defects and unexpected issues.\u003c\/span\u003e\n\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"policy-item\"\u003e\n                \u003csvg width=\"32\" height=\"32\" viewbox=\"0 0 48 48\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.5\"\u003e\n                    \u003cpath d=\"M24 4 L24 28\"\u003e\u003c\/path\u003e\n                    \u003cpath d=\"M16 12 L24 4 L32 12\"\u003e\u003c\/path\u003e\n                    \u003crect x=\"10\" y=\"28\" width=\"28\" height=\"16\" rx=\"3\"\u003e\u003c\/rect\u003e\n                    \u003cline x1=\"20\" y1=\"36\" x2=\"28\" y2=\"36\"\u003e\u003c\/line\u003e\n                \u003c\/svg\u003e\n                \u003cdiv\u003e\n\u003cstrong\u003e30-Day Money‑Back Guarantee\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"text-small\"\u003eNot satisfied? Return it within 30 days for a full refund. No questions asked.\u003c\/span\u003e\n\u003c\/div\u003e\n            \u003c\/div\u003e\n            \u003cdiv class=\"policy-item\"\u003e\n                \u003csvg width=\"32\" height=\"32\" viewbox=\"0 0 48 48\" fill=\"none\" stroke=\"#003087\" stroke-width=\"2.5\"\u003e\n                    \u003ccircle cx=\"24\" cy=\"24\" r=\"20\"\u003e\u003c\/circle\u003e\n                    \u003cpath d=\"M24 12 L24 24 L32 20\"\u003e\u003c\/path\u003e\n                    \u003cpath d=\"M14 26 C14 32 20 36 24 36 C28 36 34 32 34 26\"\u003e\u003c\/path\u003e\n                    \u003cline x1=\"24\" y1=\"36\" x2=\"24\" y2=\"40\"\u003e\u003c\/line\u003e\n                \u003c\/svg\u003e\n                \u003cdiv\u003e\n\u003cstrong\u003e24-Month Warranty Service\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"text-small\"\u003eWorldwide coverage against manufacturing defects. Prompt replacements or repairs.\u003c\/span\u003e\n\u003c\/div\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Backpacks \u003e\u003e","offers":[{"title":"- Default","offer_id":43114163404883,"sku":"868053918123","price":89.99,"currency_code":"USD","in_stock":true},{"title":"- Gray","offer_id":43114163437651,"sku":"868053918124","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0624\/6170\/6323\/files\/HKM-337747-Multifunctional-Waterproof-Laptop-Backpack-for-School-and-Outdoor-Use.webp?v=1766323514","url":"https:\/\/www.hekomart.com\/products\/hkm-337747-multifunctional-waterproof-laptop-backpack-for-school-and-outdoor-use","provider":"Hekomart.com","version":"1.0","type":"link"}