Backpacks >>
HKM-337747 Multifunctional Waterproof Laptop Backpack for School and Outdoor Use
HKM-337747 Multifunctional Waterproof Laptop Backpack
Engineered 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.
KEY FEATURES
Advanced Waterproof Protection
Constructed 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.
Padded Laptop & Tablet Compartment
A 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.
Ergonomic Airflow Harness
S-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.
21 Intelligent Compartments
Over 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.
Integrated USB Charging Port
A 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.
Anti‑Theft & Travel‑Ready
A 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.
Military‑Grade Durability
Every 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.
TECHNICAL SPECIFICATIONS
DESIGNED FOR EVERY PACE
Campus & Study
Dedicated 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.
Professional Commute
A 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.
Outdoor & Adventure
Breathable 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.
Daily Versatility
From 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.
WHY THE HKM-337747 OUTPERFORMS
vs. industry average of 8–12 pockets in similar capacity packs
Only 2.0 lbs vs. 2.9 lbs average for waterproof 28L backpacks
Suspended laptop sleeve absorbs impacts that would otherwise dent device corners
Airflow back panel reduces skin temperature by up to 4°F vs. flat foam backs
FREQUENTLY ASKED QUESTIONS
Is this backpack truly waterproof?
The 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).
Will a 15.6″ gaming laptop with a thick chassis fit?
Yes, 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.
Does the USB port include a battery?
The 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.
How do I clean the backpack?
Wipe 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.
Is there a sternum strap whistle or safety feature?
The 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.
Can this backpack stand upright on its own?
Yes, 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.
On all orders, no minimums. Fast, reliable delivery.
Shop with confidence. Extended care covers defects and unexpected issues.
Not satisfied? Return it within 30 days for a full refund. No questions asked.
Worldwide coverage against manufacturing defects. Prompt replacements or repairs.
Every product we offer includes a 180-day purchase protection plan at no additional cost. This coverage extends beyond a standard warranty, reflecting our confidence in product quality and our ongoing commitment to your satisfaction.
The protection plan is designed to provide practical help in real-world situations. Whether you encounter a manufacturing issue, a performance problem, or an unexpected accident, our team is ready to assist with clear, fair solutions.
What Is Covered
Manufacturing Defects
We replace items with material or workmanship flaws at no charge.
Performance Failures
Free repair or replacement if the product fails under normal use.
Accidental Damage
One-time courtesy replacement at a reduced price.
Zero Hidden Fees
All shipping costs for replacements and returns are covered.
How to File a Claim
How This Differs from the Warranty
The 180-day purchase protection includes accidental damage and performance failures that are typically not covered by a standard warranty. It provides an additional layer of support during the first six months after purchase, giving you greater confidence and peace of mind.
We want you to be completely satisfied with your purchase. If for any reason you are not fully happy, you may return your item within 30 days of delivery for a full refund. No lengthy forms, no unnecessary questions.
Our return policy is built on a simple principle: if the product is not right for you, we will make it right. We understand that online shopping involves trust, and we work hard to earn that trust with every order.
Return Eligibility
30-Day Window
Request a return within 30 days of delivery.
Original Condition
Unworn or unused, with tags and original packaging.
Proof of Purchase
A receipt or order number is required.
Fast Refund
Refund processed within 10 business days.
How to Start a Return
Returns & Exchanges Overview
Damages & Exchanges
Please inspect your order as soon as it arrives. If the item is defective, damaged, or incorrect, contact us immediately so we can evaluate the issue and make it right. For exchanges, the fastest option is to return the original item and place a new order for the replacement.
We believe in the quality of our products, and we want you to share that confidence. Every product is backed by a 24-month warranty covering all structural and functional components, including zippers, buckles, straps, and fabric integrity.
The warranty is designed to be simple and accessible. You only need your proof of purchase to begin a claim, and our team will assess the issue promptly. If a manufacturing issue arises, we will make it right.
What the Warranty Covers
Comprehensive Coverage
Every part warranted for two full years.
Free Repair or Replacement
Whichever is faster, at no cost to you.
Quick Turnaround
Claims assessed within 1 business day.
Transferable
Warranty follows the product, not the owner.
How to File a Warranty Claim
Every order ships free—no minimums, no hidden fees. We currently deliver across the United States and are actively working to expand to more countries. We partner with reliable U.S. courier services to ensure your order arrives safely and on time.
Our delivery process is designed for transparency. From the moment you place your order to the moment it reaches your door, you receive clear updates at every stage. We carefully inspect each product before dispatch, and we provide tracking information as soon as your order ships.
Our U.S. Shipping Partners
USPS
Official national carrier with nationwide coverage.
UPS
Fast and reliable ground and express shipping.
FedEx
Express delivery with real-time tracking.
DHL eCommerce
Efficient parcel delivery for e-commerce shipments.
Delivery Process
Delivery Time Summary
Cancellations & Taxes
You may cancel your order at any time before it ships. All product prices include applicable taxes, and there are no additional VAT or customs fees for orders delivered within the United States.
Whether you have a question, need help with an order, or just want some advice, our support team is available around the clock. We don't just respond to messages—we work with you to find real solutions that fit your needs.
Our support specialists are trained to handle a wide range of requests, from product recommendations to technical troubleshooting. No matter the question, you can expect a professional and friendly response.
How We Can Help
Product Guidance
Our experts help you choose the right product.
Order Assistance
Modify orders, track shipments, or speed up delivery.
Warranty & Returns
Start claims or returns quickly and easily.
Technical Troubleshooting
Step-by-step solutions for product issues.
Contact Information
24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
Support Hours
Available 24 hours a day, 7 days a week
