ROCKBROS Photochromic Cycling Glasses
1. Brand Name: ROCKBROS
2. Model Number: Cycling Glasses
3. Lenses Optical Attribute: Photochromatic
4. Sport Type: Cycling
5. Weight: About 120g/pair
6. Lens Width: About 8cm
7. Lens Height: About 5cm
8. Lenses Material: Polycarbonate
9. Frame Material: Acetate
1. Hydrophilic Rubber
2. Acetate Frame
3. Polycarbonate Lens
5. 100% UV Protection
6. Adjustable non-slip nose and Earpads case included
1. Color change time: winter-1 minute, summer-40 seconds.
2. Speed depends on sunlight and UV intensity!
3. The rate of discolouration is related to the intensity of ultraviolet light and the temperature.
(if UV intensity and temperature are low, The speed of discolouration will become slower).