High Sierra Quickshot 70 Hydration Pack Black, Tungsten, 17x11x5.25 Inches 600 Cubic Inches Large front load main compartment side access hydration compartment with shoulder strap hose jacket holds 2 liter reservoir Hinged front pocket holds a helmet Front zippered pocket holds bicycle tools, accessories or media player Adjustable waist belt secures the pack and an adjustable sternum strap helps stabilize pack 17x11x5.25 inches 600 cubic inches (478 cubic inches with filled reservoir)