Description: "RCS -Reverse Skateboard Carry System Killer padded interior laptop compartment Posh lined media and valuables pouches Expandable side beverage/accessory holsters Organization panel and accessory pockets Ridiculously padded dual density foam shoulder straps with Soft Neck seams Over-stuffed comfort back panel with breathable mesh Materials:1680D poly, 420D dobby nylon, 900D poly, 600D poly, PT 1000D poly, 300D poly SpecsDimensions: 18"" H x 11.75"" W x 8"" D Weight: 1.4 Lbs. Capacity: 1350 Cubic Inches Laptop Compatible: 15"""