With TR90 frame: The TR90 frame ensures a flexible fit to different facial contours. The rubber nose pad is adjustable.
UV400 protection: Clear sunglasses with UV400 lenses protect your eyes from UVA, UVB, and UVC rays. (Can also be used at night.)
Lightweight: only 30 grams in a lightweight case. PC-made lenses and frames are treated with a permanent photochromic coating; the lenses become lighter or darker depending on the light conditions.
Note: Light transmission ranges from 80% to 18% (80% light gray at low UV levels, 18% dark gray at high UV levels). The color change time varies depending on sunlight intensity, approximately 3 minutes in winter and 2 minutes in summer.
