Altalist KAKU SP1 Photochromic Lens Gray Frame Blue Mirror [ALTALIST] (Smoke Lens)

Adopts a big lens with a wide field of view and high windproof and dustproof performance. The photochromic lens changes its color depending on the amount of UV rays, so it can be used day or night. The lens material is polycarbonate (PC), which has high impact resistance and transparency. The frame is made of Grilamid TR-90, a new material for the 21st century that is highly elastic, impact resistant, and lightweight. Air vents on the temples, including weight reduction purposes, improve air circulation and reduce lens fogging An Asian fit product created by a Japanese designer, the front curve is gentle and the frame is wide to fit the Japanese frame, which has a wide face and a low nose bridge. The movable nose pad allows you to freely adjust the interference with the cheekbones and the distance from the forehead. Silicone material is used for the part that comes into contact with the ear to prevent pain. Full frame construction ensures strength and safety Inner frame included for prescription lenses About ALTALIST