Versatile top loader with multiple MOLLE/PALS panels. Features include: internal aluminum back stays, sternum strap, hydration compatibility - up to (3)-liter reservoir. Generous main compartment with draw string, (4)-internal slip pockets for improved organization, padded waist belt, map pocket, mesh back liner for improved air flow & comfort and bed-roll compression straps. Dimensions: 12 x 6 x 20 in. 600-D Poly/Canvas.