The frames are crafted from a durable Grilamid and nylon blend, featuring straight temples that don't pinch and temple vents to keep you cool. The frame and lenses wrap around to provide the most comfortable fit. This particular style offers Edge Eyewear's Asian and Islander fit which is designed to fit various facial structures with use of the adjustable nose piece. Edge Eyewear developed a revolutionary, military grade anti-fog coating called "." These vapor shield, poly-carbonate, clear lenses are unaffected by fog.  Don't let the fog get you, stay protected with the Kazbek Vapor Shield technology. Watch the Anti-Fog Technology that puts other brands of safety glasses to shame.