Independently handmade Sunglasses that have offered the best mineral lenses since 1957, only one of three in the world still producing mineral glass lenses. As a 100% natural and recyclable locally sourced product Vuarnet mineral lenses also filter 100% of UV (UVA, UVB, & UVC) and provide up to 99% protection against damaging Blue Light also known as HEV (Hight Energy Visible Light). Every prescription pair of lenses ordered from their production facility in Meaux, France go through a seventeen-step process including exclusive treatments and strict quality control to guarantee no chromatic distortion and always high-definition vision. Their use of durable Nylon frame materials makes them a favorite for sport enthusiasts and those who love to explore the alpine, ski, hike, or just adventure.