Carry On Travel Backpack
The backpack is not only a travel backpack with maximum size allowed on a IATA flight, but also a great choice for weekender trip, providing taking planes, trains and buses. The padded straps work well to reduce bulk.
Much convenient than roller bags, just pack your stuff and go.

Multiple Layers, Spacious Backpack
With multiple layers, sturdy meshes, special compartments, keep all your stuff organized.
After extending, roomy main compartment big enough like roller luggage, can hold up to 3-4 days clothing.
Velvet laptop and table sleeves can protect your electronic products, up to 17 inch laptop
Front pockets could hide away your stuffs, multiple interior slip pockets and one mesh pocket for your travel essentials. USB charging port allow you free your hand when charging your electronic device for you convenience.

Product Features

• Expandable travel backpack: Expandable design provides extra 20 liters, before extended is 20L, dimension: 18.3×12.2×5.9inch/46.5x31x15cm; after extended is 35L, dimension: 18.3×12.2×9.5inch/46.5x31x24cm. Meshes inside to keep things organized
• Spacious flight approved travel backpack: The backpack has extra zipper compresses pack to make it more roomy. It meets all of the requirements to travel on an aircraft, and save your money on baggage fees
• Multiple carrying backpack: Use as a daily backpack, a flight approved carry on bag or attach this bag on the luggage for hands free: a strap at back allows backpack to attach on the luggage handle tube and hide-away backpack straps
• Ergonomic comfortable design travel backpack: Multi-panel Airflow Design provides extra padding for comfort and maximum back support.Adjustable waist straps and breathable mesh shoulder straps with plentiful sponge passing help relieve the stress from your shoulder
• Convenient external USB port travel backpack: built-in charging cable provides a more convenient way to charging your phone, free your hands from power bank