The CamelBak Podium® Flag Series Chill™ 21 oz Water Bottle is for anyone looking to stay hydrated, especially while on a bike and no matter the distance. It's designed to fit a variety of bottle cages on the market so you can always have hydration with you. This bottle has an easy-squeeze design to you intake more liquid with less effort. It's equipped with a self-sealing cap for less spills and splashes so that hydration goes where it's needed most, down your gullet. This bottle's on/off valve provides positive lock out for leak-proof transport and it's entirely BPA, BPS, and BPF free so you never have to worry about harmful chemicals leaching into your drink. The CamelBak Podium® Flag Series Chill™ 21 oz Water Bottle offers best-in-class hydration so you can stay focused on your ride or activity.