Maximum field of vision NoFog™ Anti-Fog lens treatment Lens Lock System features four locking pins that go through the lens instead of grabbing it from the top Articulated Polyamide (nylon) outriggers NoSweat 3-layer molded face foam Extra wide no-slip silicone strap Frame is constructed of soft Thermoplastic urethane (TPU) with UV blockers to help maintain flexibility, even in cold temperatures Polycarbonate lens Made in the U.S.A. Bonus clear lens included.