New, lightweight valve self seals after each sip and can be opened and locked with one hand to prevent leaks when not in use. A dust cover protects the silicone valve from outside elements.
Features
Dust Cover protects silicone bite valve from collecting dirt
High-flow valve delivers water when you need it most.
Safe & Reliable 100% BPA and PVC Free
Self-seals after each sip and can be open and closed during activity with one hand.