Fits any hydration system using 3/8'' tubing
Allows 70-100% more water flow than other brands
Internal O-Ring seals valve completely to eliminate leakage
Tough polycarbonate material that won't bite close while drinking
Very dynamic and light glasses for high demands, created with innovative technologies. Equipped with face protection couplings (this system is known as "Bumpers").
- unbreakable
- photochromic
- semi-rigid
- lightweight