Like most water bottles, the Camelbak 21oz Podium Chill Insulated Water Bottle keeps you hydrated on runs or bike rides. Unlike most bottles, this one keeps your water cold from the first hour to the last. Its BPA-free TruTaste polypropylene material is safer to drink out of than polycarbonate plastics and it won't distort your water's taste, and HydroGuard insulation keeps your beverage chilled twice as long as regular sports bottles. The Jet Valve cap is spill-proof and self-sealing so you can squeeze some deliciousness down your gullet quickly and get back to what you were doing.