100% 600DPolyester of which 50% recycled polyester;Anti-theft backpack;Reinforced cut-proof front panel;Back zip closure with TSA combination lock;Back-protected quick-access zipped pocket;Adjustable shoulder straps and sternum strap;2 zipped pockets on the shoulder straps;2 straps on bottom to hold jackets or sweaters;2 side pockets;1 side pocket with built-in USB port connected to inner power bank holder (inner micro USB cable provided);1 side pocket with theft-preventing coiled cable to attach the backpack to table/chair leg;Inner compartment with padded laptop sleeve for laptops up to 15 inches;Padded tablet sleeve for tablets up to 11 inches;2 mesh zipped pockets;2 detachable zipped pouches for cables or accessories;2 inner pockets. including 1 for bottles or flasks and 1 for storing a power bank;Integrated Rain Cover;