The award-winning pressurized hydration system allows you to spray water to hydrate, share, clean, cool, etc.--anything you need.Pressurized bladder, no need to suck for your hydration anymore!100 oz (3L), quick-release valves for drinking tube and pressurization tube for easy refill and bladder removal, slide top for easy refill, cleaning and drying.1600 cubic inches of pack capacity with two large stowage compartments, additional interior utility organizer and mesh pockets.500D Cordura.Molle.Back ventilation.Compression straps.Bed roll straps.Removable waist strap.Box-stitched reinforced pack handle.Load bearing waist belt with molle attachments.Additional interior utility organizer and mesh pockets.Insulated drink tube.