Ryders Eyewear Hijack Photochromic Sunglasses - Men R607-005 High quality cycling glasses with polycarbonate lenses that block 100% of harmful UVA, UVB & UVC light Frames are TR90 thermoplastic for durability, flexibility, and lightness Hydrophilic anti-slip nose pads and Temple tips actually grip better when wet Photochromic lens changes tint as lighting conditions change, perfect for Variable trail conditions while mountain biking Medium to large fit, 47-15% vlt