Features: Double-walled construction keeps water cold twice as long for reliable on-bike hydration Optimized cage fit engineered to sit securely in a wide range of bottle cages Easy-to-clean interface with fully separable parts for thorough cleaning Nozzle cover keeps dirt out and your mouth clean on dusty trails Designed for easy squeezing to deliver more liquid with less effort Self-sealing cap minimizes spills and splatters On/off valve provides a positive leak-proof lockout for secure transport Built for best-in-class hydration so you can stay focused on the ride Additional Details: CamelBak Products, LLC ("CamelBak") has built its reputation by engineering products that exceed consumer expectations for quality and durability. The Got Your Bak(TM) Lifetime Guarantee covers all reservoirs, backpacks, bottles, coolers, drinkware and accessories from manufacturing defects* in materials and workmanship for the lifetime** of the product.