The Camelbak Big Bite™ Valve would have to be the best bite valve on the market. 

A self-sealing design that works with all Camelbak reservoirs, the Big Bite™ Valve makes sipping water an efficient pleasure, and it seals reliable every time.

Don't settle for second best, use a Genuine Camelbak replacement part for your hydration system.

• Self-sealing
• One-piece silicone design
• Works with all Camelbak reservoirs