Get wrapped up in these classic pieces of eyewear with an aggressively sculpted frames made of Grilamid TR90 in a black matte finish. Three sets of shatter resistant polycarbonate interchangeable lenses include anti-fog smoked, amber and clear lenses. These sunglasses are RX ready. Two sets of removable foam aid in the reduction of wind blasts and prevention of fogging. Finally, the detachable, adjustable strap gives the maximum amount of options for the multiple functions of this pair of eyewear.