COUPLE OF REPLACEMENT CATEGORY 4 LENSES COLORADO MODEL
The category 4 lenses of glacier and high mountain glasses are made of top quality and optically perfect polycarbonate. Polycarbonate is the material that allows the lenses to be lighter and safer. In fact, in the event of an accidental impact, the polycarbonate unlike glass does not release small fragments that could damage the eye. In fact, polycarbonate is also used for protective glasses. The category 4 lens is a must for those who love the mountains. Using unsuitable lenses in the high mountains leads to a noticeable reddening of the eyes at the end of the day, and in some cases even tearing. With a forced stop of about 48 hours. Using suitable lenses category 4 not only protects from UV rays, but with a darker base it allows you to relax your eyes and enjoy the path only.