Hot temperatures and a blazing sun are no match for the insulating power of CamelBak's Podium ChillJacket Bottle. It boasts a double-wall polypropylene construction with an airtight layer of insulating foam to keep your drinks nice and cool. And to prevent tastes, odors and bacteria it's lined with CamelBak's HydroGuard. This better bottle also sports CamelBak's easy-sipping, high-flow mouthpiece that even has a shut-off so it's leakproof. The Podium is dishwasher safe, fits in any bottle cage, and you don't have to use the ol' hip-slap to close it.