Elvex Go-Specs GG-40C-FF protect against dust, sand, cement, and chemical particles, according to the manufacturer. The high-velocity-impact?resistant polycarbonate lenses are 1.8 mm thick with a base 6 curvature and have an anti-fog coating. Go-Specs feature a polyurethane foam seal and angle-adjustable temples and offer 99.9 percent protection from UVA and UVB rays. Tested to ANSI Z87(+). Price: $9.50. 203-743-2488. elvex.com.