CamelBak Podium Chill Insulated Water Bottle (Discontinued Styles) Polypropylene Double-wall construction keeps water cold twice as long as regular sport bottles Innovative, self-sealing Jet Valve eliminates splatters and spills Lightweight, easy-squeeze bottle delivers the right flow to quench your thirst Removable nossle for easy cleaning CamelBak Got Your Bak Lifetime Guarantee