Zenon Z12™ Rimless Indoor/Outdoor Optical Eyewear provides excellent protection from projectiles and impacts while ensuring crisp, clear visibility. Versatile I/O lens accommodates indoor and outdoor use without distortion concerns. Universal-fit, wraparound design adapts to the average face size, while thin, flexible temples and a molded saddle bridge deliver a secure, pinch-free fit for all-day wearing comfort. Anti-scratch hard-coat treatment toughens the lens surface to deliver a longer product life. 9.5 BCR (Base Curve Radius).