When sunlight hits our Photochromic Lenses, it triggers a reaction within the lens that allows it to absorb more light, making it darker. The intensity of the sunlight has a direct affect on how dark or light the lens is at any given time.
TR90 Thermoplastic frame. A Swiss technology. Extremely flexible, durable, and lightweight
Polycarbonate lenses. Extremely durable thermoplastic that is used in bulletproof glass and astronaut helmets. High impact resistance, UV protection, light weight and optically correct
Hydrophilic anti slip nose pads and temple pads. Grips better when it is wet
ULTRA LIGHTWEIGHT - As with any piece of high-performance equipment, weight is an important factor. TR90 is incredibly lightweight and comfortable.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 1 inch
Height : 1 inch
Length : 1 inch

Item Weight: 4 ounce (View shipping rates and policies)
Shipping Weight: 1 pounds (View shipping rates and policies)

ASIN : B00MOS2VQ2