Description Stihl hellfire glasses offer quality protection that does not compromise on style. Their sleek design puts a new twist on protective eyewear, while still filtering out 99% of harmful UV rays. The multi-colored frame holds your choice of gold mirror, silver mirror or smoke lenses, each made from optical-grade polycarbonate. An integrated rubber nosepiece and temple inserts are designed to help reduce slippage and provide all-day comfort.