This USWE Bite Valve Blaster is a proven performer that has a 45 degree angle for natural ergonomics. The valve has a twist shut-off function that allow you to turn the valve on/off with a simple twist. The bite valve is partly made out of silicone for a secure automatic seal after every sip of water. Gently bite it to release the flow. This product is made by Hydrapak LLC for USWE Sports AB.
Hydration Accessories details: