Unique for its convenient diaphragm valve is the 2011 Camelbak Podium Big Chill 25oz Water Bottle. When the bottle top is in the open position, the diaphragm valve allows the rider to drink by squeezing the bottle without having to close it after.
Unlike other polyethylene water bottles, the Camelbak is all polypropylene, which is less reactive so the plastic taste is reduced also with the help of Hydroguard. Though polypropylene, the water bottle is as soft as polyethylene bottles, thanks to the Podium feature.
The 25oz capacity is a Big chill feature, which offers more hydration for longer rides. Along with the self-sealing Jet-valve podium cap, the Camelbak Podium Big Chill water bottle also features double-wall construction with thermal insulation.