Adjustable top loading main compartment. Two large side pockets, holds a 32oz. PC water bottle (sold separately). Two regular side pockets. Two convenient small pockets on waist belt. Vertical front zipper for easy access to all gear. Inside Hydration ready pouch for 2-liter bladder (sold separately). Mesh suspension system keeps you cool with the heaviest load. 37 inch unique Enduroflex construction frame Ultra padded shoulder straps, and hip belt. Large front bottom pocket w/ access to main body. Removable hood with zippered pocket. BONUS color rain cover. 5,150 cubic inches. 30 in. x 16 in. x 8 in.