The lightweight, contemporary full frame of the Dorado features dual lenses for improved protection and 100% visual correctness. Comfort-fit rubber temples and nose pieces prevent eyewear from slipping while also providing maximum comfort. The BH991PFT also features a PFT lens. Thanks to its chemical and physical properties, Performance Fog Technology is a permanent coating that prevents the formation of condensation on the lenses by absorbing the humidity drops. \nBH9G - optional removable flame-resistant foam gasket available for all Dorado safety glasses.