RockBros Photochromic Sunglasses Cycling Glasses Sports Goggles Men Women UV400 Cycling Driving Running Clear Lens

ROCKBROS Photochromic Sunglasses Transparent UV400 Protection Great for Golf, Cycling, Driving, Sport, Skiing, Runing, Tennis, Racing--This sunglasses is photochromic technology. And its transmittance is from 80%to 18% (80% is light gray color when in low UV, 18% is dark gray color when in high UV). Designed Frameless Construction, allows you a wide Vision. Only 33g, so you will feel no pressure when you are wearing it. Thicken PC lenses with UV400 protection coating offers you a good UV protection. With adjustable soft rubber nose pad, you can adjust its angle at will. Equipped with Myopia frame, ROCKBROS sunglasses can be used for multiple activities, like cycling, climbing, hiking, caming etc. And pls attention: Color changing time differs from intensity of sunlight. Winter for about 3 minutes , summer for about 2 minutes. Unisex, Adult,