Color change principle:The lens contains color change factor,under ultraviolet light it will make a chemical reaction, it will quickly change color , when the sun is getting strong, lens color will deepen and absorb ultraviolet light, when there is no sunlight, the color of the lens will return to the original color.
Aluminum magnesium alloy Frame frame
TAC Discolored Lens lens
Lens width: 2.6 inches
Size:Lens height:40mm (1.6 inches); lens width:67mm (2.6 inches); Arm length:138mm(5.4 inches); Frame length:141mm (5.55 inches); Nose brige:15mm(0.6 inches).
Advantage:Stylish,Large Frame,Durable. Lightweight design is ideal for usage by motorcycle and cycling bicycle, driving,fishing, climbing, or other outdoor activities enthusiasts.
UV400 protection coating, blocks harmful UVA & UVB Rays. Eliminate reflected light and scattered light and protect eyes perfectly. The light transmittance can reach over 99%.