Suitcases >>
HKM-523475 Expandable 4-Piece Trolley Luggage Set - 20", 24", 28" Suitcases with Wheels and Matching Bag
HKM-523475 Expandable 4-Piece Trolley Luggage Set
Engineered for the modern traveler, the HKM-523475 delivers a seamless blend of resilience, expandable capacity, and effortless mobility. This set includes three meticulously sized suitcases — 20-inch, 24-inch, and 28-inch — plus a versatile matching bag, covering everything from overnight business trips to extended family vacations.
360° Precision Mobility
Dual spinner wheels with precision bearings deliver whisper-quiet, multidirectional glide across airport terminals, cobblestone streets, and hotel lobbies.
Expandable Architecture
An intelligent expansion zipper adds up to 2 inches of depth, instantly increasing packing volume by nearly 25% — ideal for souvenirs and spontaneous finds.
Engineered Durability
Crafted from a high-strength polycarbonate composite that absorbs impact and resists scratches, maintaining its sleek contour trip after trip.
Refined Engineering, Uncompromising Performance
Hinomoto-inspired Spinner Wheels
The 8-wheel dual spinner configuration uses precision steel bearings and thermoplastic elastomer treads. They roll smoothly over uneven surfaces, minimize vibration, and produce minimal noise — even under heavy loads of up to 30 lb (13.6 kg) of packed weight.
Multi-Stop Telescopic Handle
An aircraft-grade aluminum alloy trolley handle with an ergonomic push-button lock adjusts to multiple heights. The smooth telescoping action reduces wobble, giving you confident control whether you are 5'2" or 6'4".
Smart Expansion System
A reinforced expansion gusset with a durable YKK-grade zipper unzips to increase suitcase depth by 2 in (5 cm). The 20" carry-on expands from 9 in to 11 in (22.9 to 27.9 cm), the 24" from 10.5 in to 12.5 in (26.7 to 31.8 cm), and the 28" from 11.5 in to 13.5 in (29.2 to 34.3 cm).
Scratch-Resistant Shell
The micro-diamond textured polycarbonate composite surface deflects minor abrasions and maintains a like-new appearance. Independent lab tests confirm a 40% higher scratch resistance compared to standard ABS luggage.
Featherweight Balance
Despite its robust build, the 20" suitcase weighs just 6.2 lb (2.8 kg), the 24" 8.4 lb (3.8 kg), and the 28" only 10.5 lb (4.8 kg). This lightweight design helps you avoid airline overweight fees while maximizing your packing allowance.
Organized Interior
Fully lined compartments with a divider panel, compression straps, and zippered mesh pockets keep clothing neat and secure. A water-resistant toiletry pocket in the 24" and 28" models adds extra practicality.
Versatile 4-Piece Ensemble
20" Carry-On
21.5 x 14 x 9 in (54.6 x 35.6 x 22.9 cm)
Expands to 11 in deep
6.2 lb (2.8 kg) · 35–45 L
24" Medium
26 x 16.5 x 10.5 in (66 x 42 x 26.7 cm)
Expands to 12.5 in deep
8.4 lb (3.8 kg) · 60–75 L
28" Large
30 x 18.5 x 11.5 in (76.2 x 47 x 29.2 cm)
Expands to 13.5 in deep
10.5 lb (4.8 kg) · 95–115 L
Matching Tote
16 x 12 x 6 in (40.6 x 30.5 x 15.2 cm)
1.1 lb (0.5 kg)
Front pocket & trolley sleeve
Frequently Asked Questions
How does the expansion mechanism work?
Each suitcase features a secondary zipper around the main compartment. Unzipping it releases an extra fabric gusset, instantly adding 2 inches (5 cm) of depth. The expansion is uniform and does not compromise the suitcase’s stability or wheel alignment.
Is the 20-inch carry-on compliant with major airline cabin size limits?
The 20" expandable carry-on measures 21.5 x 14 x 9 in (54.6 x 35.6 x 22.9 cm) in its unexpanded form, which meets the domestic carry-on requirements of most major US carriers. When expanded to 11 in depth, it may need to be checked. Always verify your airline’s current policy.
What materials are used in the shell and how do they resist impact?
The luggage uses a polycarbonate composite with a micro-diamond texture. Polycarbonate is inherently flexible, allowing the shell to flex under impact and pop back to its original shape. This reduces the risk of cracking compared to rigid ABS-only constructions.
Can the tote bag be secured on top of the suitcases?
Yes. The matching bag includes a rear trolley pass-through sleeve that slides securely over the extended handle of any suitcase in the set, allowing you to transport everything with one hand.
How do I clean and maintain the luggage?
Wipe the exterior with a soft, damp cloth and mild soap. Avoid abrasive cleaners. The wheels can be cleaned with a dry brush to remove debris. For the interior, use a gentle fabric cleaner and let it air dry. Regular maintenance ensures smooth rolling and a pristine look.
Your Peace of Mind, Guaranteed
Free Shipping
On all orders, no minimum. Delivered to your doorstep with care.
180-Day Purchase Protection
Covers manufacturing defects and faults. We will repair or replace.
30-Day Money-Back Guarantee
Not satisfied? Return in original condition for a full refund.
24-Month Warranty Service
Comprehensive coverage for wheels, handles, zippers, and shell integrity.
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
