Built with the brilliance of integrated cam-action barrel hinges, Tinfoil#8482 is what happens when our industrial design DNA wraps itself around stainless steel and reinvents the idea of wire frames. Faux half rim Design allows comfort and performance of Three-Point Fit that holds lenses in precise optical alignment Constructed of ultra-lightweight thin hi-modulus stainless steel frame material Rimlock technology for enhanced lens retention Integrated screwless cam hinge mechanisms Unobtainium & reg earsocks and new air-filled silicon nosepads ensure a snug, secure fit Includes hard case UV protection of Plutonite & reg lens that filters out 100% of UVA / UVB / UVC & harmful blue light up to 400nm Glare reduction and tuned light transmission of Iridium & reg lens coating Optimized peripheral vision of 6-base lens curvature Optical precision and impact resistance meet or exceed Z80.