Bolle Vigilante Sunglasses - T-Standard Lens Set 100 percent UVA/UVB Protection exceeds industry standards Features bolle P3 lens technology Bolle carbo-glass Coating is applied to both sides of the lens, providing superior Scratch resistance Bolle anti-reflective (ar) Coating is a scientifically engineered Coating applied to the back of lenses to provide Protection from backside glare, keeping optics Crystal clear All vigilante lenses exceed ANSI Z87 (American National standards institute) Requirements for UV Protection, impact resistance and optical clarity Fit - Medium/Large UVA/UVB Protection - Bolle exceeds the industry standard with 100% 20.3 Poly carbonate Lenses - Sunglasses should protect you from more than just the sun. That's why our polycarbonate lenses are made from lightweight, premium-grade resin that's 20 times more impact resistant than glass-and three times lighter. Rx S.O.S. Prescription Available S.O.S RX Adapter - With one simple snap, the patent-pending technology in our Rx adapter lets you attach prescription lenses to your PAROLE, VIGILANTE, SWIFTKICK OR TRAVERSE sunglasses.