This smart backpack from Club Rochelier is fabricated in 250D polyester material. Features 4 zippered compartments for better organization. Small hidden front pocket stores smaller accessories, Spacious second and third zippered compartments and main compartment with a secure laptop pocket and a hidden zippered compartment with USB cable and USB/Headphone ports. Comfortable padded backpack straps and side mesh pockets combines looks and innovation for a tech-savy generation. 250D Polyester USB Charge Port and Cable Single top handle with re-enforced grip 4 Compartments with zipper closures 1 Hidden front pocket 2 Large accessories pockets 1 main compartment with foam padded interior laptop holder Polyester lined interior 2 side polyester mesh pockets Adjustable padded backpack straps 13.5 x 4.5 x 18 in