Zol Sky Photochromic lens,is anoptical lensthat darkens on exposure to light of sufficiently high frequency, most commonlyultraviolet (UV)radiation. In the absence of activating light the lenses return to their clear state.
Polycarbonate
Photochromic Lens
100% UV Protection
Rubber insert on nose
Free microfiber case for cleaning the lenses and storage of the sunglasses.