Boll&eacute; Safety Glasses CHOPPER (SPIRIT) Smoke lens black sunglasses CHOPSF ANSI Z87.1-2010 CSA Z94.3-2007 Lens Markings Z87+U6S ANSI Z87.1-2010 CSA Z94.3-2007 Temple Markings Z87+/Z94 High impact 2.2 mm polycarbonate lens, anti-fog/anti-scratch coated on both sides 99.99% UVA and UVB light absorption High contour (10.5 base), single piece lens with 180 degree distortion free viewing and superior optical quality