The 25 fl. oz. CamelBak Podium Big Chill Insulated Water Bottle uses double-walled construction to keep water cold long after you start pedaling. 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. TruTaste? polypropylene with HydroGuard? lets you taste your water, not your bottle. Positive lockout for leakproof transport. Wide-mouth opening is easy to fill with ice and water and a breeze to clean. Keeps warm beverages warm during cool weather rides. Removable nozzle for easy cleaning.100% free of BPA, BPS anf BPF.