Photochromic Glasses - Grey Without Degree - Clear Black Frame

Smart photochromic lenses: lenses change color due to the intensity of UV rays. Under strong sun exposure, lenses without glass turn black; Cloudy, it will turn gray; It is transparent, whether in the bedroom or at night. The advantage of photochromic lenses is that you can wear glasses all day and change the color of the lenses according to the light conditions.
Lightweight: these photochromic sunglasses weigh only 26 grams. Lenses and frames made by PC Process durable photochromic circulation glasses. Nasal pads make you comfortable to wear. One of the most annoying things about sunglasses is that they can get too heavy. These glasses use special design technology to make sure you stay comfortable and safe during your outdoor activities.
Eye Protection: polarized sunglasses can reduce glare from roads, water, snow and other horizontal surfaces. Restore true colors, eliminate reflected and scattered light and protect your eyes perfectly. Polarized sunglasses reduce glare and fog to make your eyes more comfortable and see better.
Suitable for: widely used for outdoor activities such as cycling, running, hiking, mountaineering, skiing, fishing, driving.
HD polarized lenses: * uv400 protective lenses block harmful UVA, UVB and UVC rays. The best anti - UV polarized sunglasses for men!
[discoloured lenses] exposure to moderate ultraviolet sunlight darkens, but artificial light does not, so the lenses turn black in direct sunlight, but brighten in low light.
Lightweight, robust, ultra lightweight and high quality PC frames: you hardly feel them, but they are unbreakable!
[! Important ! ] Note: you should test for fading in the sun, but not in artificial light.
Multifunctional sport sunglasses: ideal for outdoor activities such as driving, running, fishing, running, skiing, mountaineering, hunting, hiking, cycling, motorcycling, etc.