The Shield III sunglasses offer a frameless construction making them lightweight and providing excellent peripheral vision. The lenses themselves are precision crafted of impact-resistant polycarbonate and exceed the ANSI Z87+ standards for high-mass and high-velocity impact protection. This eyewear wraps around the face and has closed cell memory foam to minimize wind disruption and turbulence.; 100% UV protection Impact-resistant, anti-fog polycarbonate lenses Medium frame size Includes retainer strap and microfiber pouch ANSI Z87.1-2003+ Approved, OSHA Compliant CE EN166