UV Protection: 100% of harmful rays are blocked. The lenses of the photochromic glasses are transparent indoors and change color with the intensity of the ultraviolet radiation; the stronger the ultraviolet radiation, the darker the color. Comfortable to Wear: Our cycling glasses have non-slip, adjustable nose pads, and the temples are wrapped in soft, skin-friendly rubber. High-Quality Materials: The photochromic glasses have large PC lenses that are dirt-resistant, wear-resistant, windproof, and easy to clean. The temples have ventilation openings and are made of durable TR material. Multifunctional: Suitable for cycling, driving, fishing, skiing, traveling, and everyday use.