Feature

●【Large Travel backpack】The casual daypack is light weight to carry, breathable and adjustable shoulder straps for a more comfortable carry and relieves the stress on your shoulders on the go. You could put it on your luggage while traveling. Smooth Double zippers makes it more convenient and get easy access to your items.And it is tough, firm and does not fade.
●【USB Port Design】There is a USB charging port extension on the side of the backpack, with a built-in charging cable inside, you can easily charge your phone when you are on the road with the backpack (POWER BANK not included)
●【Waterproof and Anti-Theft Design】: (1) The back zipper pocket of the backpack can protect your valuables, such as mobile phone, passport, wallet from being stolen when you are traveling or queuing; (2)Waterproof polyester material, can protect your items from water infringe.
●【Comfort】(1)Ergonomic airflow back design, thick and soft multi-panel ventilation padding, increase support and comfort, reduce pressure on shoulders and neck; (2) Shoulder straps with adjustable non-slip chest straps
●【Multifunctional Backpack】This backpack can be carried with you or to work and school, it can be easily stored, casual style, suitable for daily travel, commuting, business travel, outdoor activities, shopping, school, unique gifts for students, youth, men and women.

[D1-black(expansion) Fit 17 inch Laptops]