Expandable Travel Backpack Flight Approved Carry On Gym Backpack with Shoe Compartment USB Port

1. This versatile travel backpack features a perimeter zipper expansion system that increases depth by 2.4 inches (6cm), boosting capacity by 40% from 25L to 30L (equivalent to a 20-inch suitcase). Perfect for switching between daily commute and multi-day weekend getaways.
2. Designed with a 180-degree lay-flat opening, like a suitcase, allowing you to pass through security checkpoints quickly and pack items with ease. Features a separate, ventilated bottom shoe compartment to keep dirty sneakers isolated from clean clothes.
3. Equipped with an inner high-density waterproof wet pocket, ideal for storing sweaty athletic clothes, wet towels, swimwear, or toiletries. Prevents moisture from seeping into other compartments to keep your laptop and papers bone-dry.
4. An external USB port allows you to charge your phone on the go (power bank not included). Designed with dual reinforced padded handles, allowing you to carry it comfortably as a vertical backpack or a horizontal duffel.
5. Features a 3D honeycomb breathable mesh back panel and 2cm thickened shoulder straps to optimize air circulation and relieve shoulder stress. A back trolley sleeve easily secures the pack onto your luggage handle, freeing your hands at the airport.
6. Material: Wear-resistant fabric
7. Weight: 775g
8. Dimensions: 42 x 22 x 29cm