Camelbak: the best-of-the-best cycling bottle for delivering cold, consistent cycling hydration with double-walled construction to keep water cold twice as long as other bottles, the insulated camelbak podium chill is the best-of-the-best for delivering cold, consistent cycling hydration. Features like optimized cage fit and improved cleanability continue to make this bottle a favorite among professionals and recreational users alike. It is and always has been 100% free of bpa, bps and bpf. Double-walled construction: keeps water cold twice as longoptimized cage fit: engineered to securely fit in a variety of bottle cageseasy squeeze: get more fluid with less effort high flow, self-sealing cap: maximizes flow rate while eliminating splatters and spills100% free of bpa, bps and bpf: ride clean, drink cleaneasy-to-clean interface: all parts can separate for thorough cleaningpositive lock out: for leak-proof transporttrutastetm polypropylene with hydroguardtm: taste your water and nothing