CamelBak Podium Ice Bottle (21 -Ounce) Made with lightweight ZEROLOFT insulation, keeps water cool 4 times longer than standard bike bottles. Keeps warm beverages warm during cold weather rides. Made from TruTaste. A proprietary blend of polypropylene that lets you taste your beverage, not your bottle. BPA free Postitive valve lockout for transport Made to fit all types of bike bottle cages