The rugged design of the Stinger features rigid TPR flared temple ends, soft nose pieces, and properly placed ventilation ports to reduce fogging. With a single 9 base curve lens, it is designed for maximum impact resistance and superior side coverage. This model features polarized lenses, which filter out bent light waves reducing glare, eye fatigue, and decreasing reflection off surfaces such as water, sand, and snow.\nBH6G - Optional flame-resistant foam gasket for all Stinger styles. \nBH6FBG - Optional flame resistant foam brow gasket for all Stinger styles