Rear zipper entry, 70 oz. (2.0L) Hydrapack hydration reservoir included, Dual hydration tube exit ports, Height and width adjustable sternum strap, Front zippered accessory and tool pocket, Lightweight construction, Streamlined design, Mesh accessory pocket, Front jacket and helmet flap, Reflective logos, Specifications: Dimensions: 14.5"h x 9"w x 3.5"d, Volume: 183 Cu.In/3 L, Materials: 400x400 dobby pindot nylon / 420 dobby square nylon