Rockland military tactical backpack has mole webbing system for attaching additional tactical gears. Large storage space with multi compartments to organize your belongings. One main built in, padded laptop compartment holds up to 17"" laptop. One padded organizer compartment for iPad, books, clothes. Two front zip pockets with organizer for iPhone, pens, keys wallet. External Usb port with built in charging cable so you can charge your phone on the go. Headphone port allows you to listen to your favorite music. Anti theft pocket on back, and trolley sleeve to slip over luggage upright luggage handles. Padded and ventilated back and shoulder straps allow to comfortably carry. Shoulder straps are adjustable with a waist buckle for extra support. Double stitched polyester and heavy duty zipper for superior durability. Measures 13"" x 8.5""x 20""H.