Features Color-Enhancing Bronze Lens After an in-depth study of the riding scenario and its optical characteristics, we selected this bronze lens, which is highly efficient in filtering distracting colors on riding and cycling scenes (mountain, road, etc.) for a clearer visual color effect. HD Visual Experience By studying the structure of the human visual system and calculating the optical refraction accurately, we developed the first HD lens that offers a clearer view and effectively reduces the visual fatigue caused by distortion. Memory frames Frames made with TR90 are extremely light and durable, making the frames resilient to damage. Shape memory materials will help the frame reinstate back to its original shape simply. Impact Resistant Lenses After rigorous testing the lense can resistance to the high speed impact and keep from the damage at some unforeseen condition. Easy-to-change Lenses We all love the interchangeable system of our ski goggles, and the light condition when cycling changes as well. Simply swap into a pair of clear lens and ride on! 100% UV400 Protection Our sunglasses lens effectively blocks the harmful UV400nm rays , offering a safe and smooth ride. What's Included All that you need, we've got it covered! 1 x sunglasses, 1 x clear replacement lens, 1 x microfiber pouch (works also as the cleaning cloth), 1 x shell case.