KD Day2Nite 2011 - Grey Photochromatic/Black Frame
These lenses are dark outdoors in the daylight and lighten automatically to almost clear when worn indoors or at night
100% UV protection
100% Shatterproof polycarbonate lens
Note: All photochromic lenses will not darken behind a faceshield or windshield and will not fully darken in very warm weather conditions.