Photochromic Cycling Sunglasses Catch people's eye in the peloton wearing MONTON Semi-rimless sunglasses. With their photochromic properties, the polycarbonate UV-protective lenses will self-adjust their tint depending on light conditions. The half frame design provides clear vision and a wide field of view. The durable TR90 frames have an adjustable nose pad for a firm fit regardless of face shape, which ensures the glasses will stay in place on rough roads. Features: - Semi-rimless frame increases field of view and ventilation - Durable, flexible and lightweight TR90 frame - Arc legs fit the ear contour closely - Polycarbonate lenses are more flexible than ordinary lenses and less prone to breakage - Transition photochromic lenses darken to sunglasses tint when exposed to sunlight or UV light and return to a clear state when indoors - Hard case for storage - Soft case provided in Monton fashion print; jersey fabric suitable for cleaning the lenses - Comes with a frame bracket that allows riders with prescription lens requirements to attach their own lenses to the sunglasses Lens protection from both UVB and UVA rays