The world's first electrochromic sunglasses, built for athletes who cannot wait for their eyes to catch up. Swipe once and the lens shifts between Clear, Balance, and Shade in about a second, no matter what the trail, road, or water throws at you. Protection: UV400 protection blocks 99 to 100 percent of UVA and UVB rays, and an IP65 rating handles rain, sweat, and dust without complaint. Durability: a solid-state, impact-resistant lens core is housed in a lightweight, flexible TR90 frame that weighs about 36 grams for long days out. Lived-in comfort: three interchangeable nose pads let you personalize the fit, and the rechargeable battery runs up to 28 days on a single charge. Technical characteristics Frame: TR90, approximately 36g Lens: solid-state electrochromic, 1-second tint transition Battery: 40mAh, up to 28 days at 4 hours a day, 2-hour full charge via USB-C Water and dust resistance: IP65 Lens height 58mm, lens width 145mm, temple length 134mm Includes: protective case, USB-C to C cable, microfiber cloth, microfiber bag, warranty card