[Polarized/Photochromic Lens] The polarized lens made of TAC material is 100% UV400 - resistant and can block harmful UVA and UVB rays. When you ride in strong sunlight, it reduces the damage caused by reflections and glare. The photochromic lens is made of PC material, which is also 100% UV400 - resistant. When you are in strong sunlight, the glasses darken and effectively protect your eyes. [High - quality Materials] Our glasses are very lightweight and durable. They weigh only about 25 g, which reduces the pressure of the glasses on the face and ears. The frame of the cycling glasses is made of high - quality TR90 and elastic rubber materials, ensuring comfort when engaging in sports activities. [User - friendly Design] Adjustable nose pads suitable for different nose shapes. A myopia frame can be mounted for glasses wearers. Ventilation holes to reduce resistance while cycling. Anti - slip rubber temples for a secure fit while wearing. [Multifunctional] The package contains 1 pair of glasses, 1 glasses case, 1 myopia frame, 1 soft pouch, and 1 cleaning cloth. Our polarized and self - tinting cycling glasses are a perfect choice for cycling, driving, traveling, fishing, hiking, and daily use. They can be used in a variety of scenarios, indoors or outdoors, in sun, clouds, or rain, during the day or at night. [Services] If you are not satisfied with these glasses for any reason, you can return them within 60 days. Feel free to contact us if you have any questions or encounter any problems.