Camelbak Big Bite Valve It's time for that much needed replacement and you don't want to buy a completely new bottle if it's not necessary. The Camelbak Big Bite Valve mouthpiece offers hands-free hydration and is ideal for any high-performance situation. Self-seals after each drink to eliminate annoying drips. It features a one-piece silicone design that includes no moving parts to break, so you can use it worry free and bring it along with you anywhere you go. It self seals after every drink to eliminate annoying drips. FEATURESOne-piece silicone design includes no moving parts to break Self-seals after each drink to eliminate annoying drips | Camelbak | Big Bite Valve Blue