Sports Polarized Glasses - Cycling Eyewear / Bicycle Glass / Fishing Sunglasses

      Note: The rate of discoloration is related to the intensity of ultraviolet light and the temperature.(if UV intensity and temperature is low, The speed of discoloration will become slower)   Tips: Style 1 is one lens style, style 2 is two lens style.  Style 2 Photochromic effect better than style 1 Style 1 is  the 3 in 1 lens, Photochromic Polarized UV400 in 1 lens Style 2 have 1 photochromic lens and 1 polarized lens   Style 1(3 IN 1 style) Product details: 3 IN 1 Polarized Photochromic  glasses Gender: Unisex lenses: 3 IN 1 LENS Transmittance: 80%-18% (80% is light  gray color when in low UV, 18% is dark gray color when in high UV) Color: Black Red Weight: 26g/pair Lens Material: Polycarbonate, PC Material frame: TR Plastic Frame Protection cyclist eyes from UV-400 UV (100% of UV protection) Non-slip nose pads is adjustable. Purpose: cycling, skiing, sledding children, fishing ,runing ,and all outdoor sports   Specifications: 1 glasses frame 1 lens 1 glasses cloth 1 glasses