The extra lightweight Caraz Conversion Kit provides the best of both worlds by combining glasses and goggles in one modern wrap-around frame. A detachable elastic band and temple arms allow for a quick switch from one to the other, while a removable EVA foam gasket creates a seal to keep foreign particles away from the eyes. The clear lenses are the classic option for safety. With pristine clarity, they are an excellent choice for indoor and low light conditions. The addition of Vapor Shield "military grade" anti-fog technology keeps these lenses completely resistant to fog, even in extreme environments. 85% of visible light passes through this lens color.