Features Polarized Lens against Glare Polarized lens blocks direct sunlight and reflection , protecting you from glare and greatly improving your visual experience, especially for fishing and kayaking in harsh sunlight. 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. Impact Resistant Lenses After rigorous testing, the lense can resist the high-speed impact and keep from damage at some unforeseen conditions. 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 lenses 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.