Altalist KAKU SP2 Photochromic Lens Clear Frame Blue Mirror [ALTALIST] (Crystal 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. VIV20's color tone and contrast adjustment allows you to more clearly capture the undulations of the road surface, providing a safer ride. The lens material is polycarbonate (PC), which has high impact resistance and transparency. The frame uses Grilamid TR-90, a new material for the 21st century that is highly elastic, impact resistant, and lightweight. Air vents in 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. Interference with cheekbones and distance from forehead can be adjusted with replaceable nose pads Full frame construction ensures strength and safety Inner frame included for prescription lenses About “ALTALIST”