Sawhorse AMBR263 Black Cap with (SH263) Safety Eyewear, Silver Mirror Lens, Shiny Black Frame Cap protects you from losing expensive eyewear with I-Tach Technology Construction Cap is built to last, made of 8 ounce 100-Percent Cotton, pre-washed Eyewear provides 99.9-Percent protection from harmful UVA and UVB rays, 100-Percent visually correct de-centered lenses, 2.2 millimeter Panlite brand polycarbonate lens material Lens quality and performance meet and exceed ANSI Testing Z87.1 - 2003 high impact standards