40 L Large Capacity Laptop Backpack 17 Inch Expandable Daypack Waterproof Business Travel Pack with USB Charging Port for Business School Travel

Features:
Made from water-repellent poly-fabric, durable, high tear strength high abrasion resistance.
24-40 L expandable capacity meets different demands, perfect for traveling.
Spacious compartments provide separate spaces for computer, files, wallet, clothes, power bank, etc.
Built-in USB port is convenient for charging your mobile phone.
Well-padded foam protects your laptop from scratching effectively.
Ergonomic and adjustable shoulder straps provide you with long-lasting comfort.
Superior pressure-absorbing sponge padding for added cushioning and support, long wear with less effort.
A well-crafted luggage strap is very convenient for attaching the laptop bag to your luggage.
Can also be used as hand bag with comfortable handle.