The Klondike® Metal, from MCR Safety, are stylishly safe glasses at an affordable price. The strong, lightweight polycarbonate lenses filter 99.9% of UV radiation and are coated with scratch-resistant Duramass®. They also have spring-hinge temples, a twin bridge adjustable nosepiece, non-slip rubber head grips, and breakaway strap indentions on the temples. Meets or exceeds ANSI Z87+.