Generous size, specifically designed to wear over prescription eyewear Cost-effective alternative to prescription safety eyewear Single-piece lens with molded-in sideshields wraps around for unobstructed field of vision Lightweight, impact-resistant polycarbonate lens offers solid protection and blocks more than 99.9% of UV-A and UV-B light Meets or exceeds ANSI Z87.1 and CSA Z94.3 standards