American Professional Travel Backpack, Expandable Multifunctional Large Capacity Outdoor Oxford Backpack for Hiking Camping (Black, 50L)

【50L Large Capacity & Expandable Design】Just one backpack is enough for travel. It can replace a 20 inch trolley case and can be directly boarded. There is a fixed strap on the back that can be fixed to the trolley case and used together with the trolley case. The back capacity can be expanded by 25%, you can get more storage space.【Multiple Pockets】There is an independent laptop pocket on the inner layer, which can accommodate a 17 inch laptop. The thickened computer partition board can better protect your computer. In addition to the independent computer pocket, there are several front pockets, front combination pockets, and side pockets. What's more, there is an anti-theft bag on the back, allowing you to put your valuable items inside. The space is reasonably layered and neatly stored.【USB External Interface】The backpack has a built-in charging data cable, and only requires connecting the power bank to the backpack's internal data cable to achieve charging function.【Easier Access】The front combination pocket and main pocket both use a 180 degree bidirectional zipper opening and closing, with a scientific and reasonable compartment for easier access. Anti Splashing. Not easily wet, effectively protecting your personal belongings.【Pressure Reduce Design】S-shaped widened and thickened shoulder straps reduce shoulder pressure, and the thickened three-layer back cushion has high elasticity, which can reduce pressure and shock, reducing back pressure. outstanding for everyday use. first-class materials and excellent craftsmanship ensure long-lasting durability.