Polycarbonate Lenses The ROCKBROS cycling glasses feature lenses made from high-quality polycarbonate, providing superior protection against UV400 and ensuring clear vision during your ride. TR-90 Frame Material The frame of these sunglasses is crafted from TR-90, a popular frame material known for its durability and lightweight design, making these sunglasses perfect for long rides. Unisex Design These sunglasses are designed to suit all genders, offering a universal fit that caters to both men and women who love cycling or other outdoor sports. Photochromic Lenses The photochromic lenses of these sunglasses adjust according to light conditions, ensuring comfortable vision whether it's bright or dark. Versatile Use Not just for cycling, these sunglasses are also suitable for driving, golfing, and other sports, making them a versatile addition to your gear. Product information Product name: Large-frame cycling glasses Item number: SP323 Lens Material: PC polarized lenses\/PC transition lenses Frame Material: TR90 Weight: about 28g Color: Light Transparent Purple \/ All Black \/ Matte White \/ Sand Transparent \/ Matte Grey \/ Azure Green