4-piece luggage sets - Carry-on and Checked Suitcase Set with Backpack

In this review of the 4-piece luggage set from Cosbarn the bottom line is simple: this set is aimed at travelers who want an all-in-one solution that balances durability and maneuverability. The set pairs a 24in checked suitcase and a 20in carry-on with a lightweight backpack and toiletries bag, and the single biggest reason to buy is the combination of a hard-shell ABS exterior with upgraded shock-absorbing universal wheels that make rolling through airports noticeably smoother. For trips where packing variety and easy handling matter, this set delivers practical value.

Key Features

• Four-piece pack: Includes a 24in checked suitcase, a 20in carry-on, a lightweight backpack and a toiletries bag to cover checked and carry-on needs plus day usage.
• Built-in security: The main suitcases include a built-in combination lock and multiple interior pockets to keep items organized and secure while traveling.
• Upgraded zippers: Reinforced Cosbarn zippers reduce the risk of zipper failure and help the set stay dependable over repeated trips.
• 8 smooth rolling wheels: High flat and straight shock-absorbing universal wheels provide quiet 360 rotation for easy directional control in busy terminals.
• Lightweight, impact-resistant shell: Premium ABS material keeps the cases lighter while adding a protective layer against everyday bumps and knocks.
• Practical backpack: Waterproof polyester backpack has a handle sleeve to attach to the telescopic handle and several pockets for organized day use.

Who It's For

The set is best for occasional flyers, family travelers and multi-week vacationers who want a coordinated luggage solution without buying pieces separately. The inclusion of both a carry-on and a medium checked bag makes it easy to combine light and longer trips.

Those who frequently fly heavy or need airline-certified ultra-durable hard cases for constant business travel should compare higher-end hardside offerings; also travelers who need metal locks or premium polycarbonate shells may want a different model.

Pros & Cons

Pros

• Good value: the four-piece grouping covers both checked and carry-on needs plus day bags in one purchase.
• Excellent maneuverability: the 8 spinner wheels and shock-absorbing design produce quiet, smooth rolling and tight turns.
• Organized interior and security: built-in combination lock and multiple interior pockets help keep belongings safe and tidy.
• Lightweight and protective: ABS shell balances weight and impact resistance for everyday travel.

Cons

• Durability reports mixed: some customers noted issues with wheel durability and occasional wear on zippers under heavy use.
• The ABS shell is lighter but not as robust as higher-end polycarbonate for constant, heavy-duty airline handling.

Specifications

Set contents	24in checked suitcase, 20in carry-on, backpack, toiletries bag
Shell material	Premium ABS hard-shell
Wheels	8 shock-absorbing universal spinner wheels (360 rotation)
Lock	Built-in combination lock
Backpack material	Lightweight waterproof polyester with handle sleeve
Handle	Three-section high-strength alloy telescopic pull rod with TPU handles

Our Verdict

The Cosbarn 4-piece luggage set is a practical, cost-conscious choice for travelers who want coordinated suitcases, a usable backpack and a toiletries bag with good maneuverability and basic security. It is especially good value for occasional and family travelers, though those needing the most heavy-duty, airline-proof construction should consider premium alternatives.

Frequently Asked Questions

Are the backpacks waterproof?
Yes, the backpack and toiletries bag are made from lightweight waterproof polyester to protect contents from light rain and splashes.

Do the suitcases have locks?
Yes, the suitcases include a built-in combination lock for basic travel security and peace of mind.

How do the wheels perform?
The set uses 8 shock-absorbing universal spinner wheels designed for quiet, smooth 360 rotation, though some users have reported occasional wheel wear with heavy use.