TR90 Cycling Polarized Sunglasses Mini Case Thickness: 7mm

Case Thickness: 7mm

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TR90 Cycling Polarized Sunglasses Mini Case Thickness: 7mmTR90 Cycling Polarized Sunglasses Function: Photochromic, polarized light and 100% UV protection Light transmittance: 80% 18% Color: 80% is light gray when UV is low, 18% is dark gray when UV is high Adjustable non slip nose pads. Please note: Discoloration rate is related to UV intensity and temperature (if UV intensity and temperature are low, the discoloration speed will be slower) Glass will only change color under UV light. Does not change color