200 denier mini grid dobby polyester. Spacious main compartment. Dedicated back laptop compartment. Top front zippered valuables pocket. Front zippered pocket with organization panel. Side mesh pocket. Side zippered pocket. Padded air mesh back panels and shoulder straps. Adjustable slide sternum strap. Integrated carry handle. Metal zipper pulls. Luggage trolley pass through on back. Laptop dimensions: 16"h x 12"w x 1"d; fits most 15" laptops.