Replacement lenses FORCE AMBIENT photochromic

photochromic polycarbonate lens, UV 400 filter category 0-3, transmittance 15-64% ANTI-FOG + ANTI-SCRATCH treatment photochromic lens – darken and lighten depending on the intensity of ultraviolet radiation (at a higher incidence of light the lenses darken a inverted at lower light intensity automatically lighten) packed in polybag