Sperian XV206 Tectonic Series Eyewear TSR Gray Fog-Ban Anti-Fog Lens and Gloss Black Temples Fog-ban anti-fog coating helps keep lenses clear in humid or extreme environments Weighs less than one ounce for lightweight comfort Flexible temples provide just the right amount of tension to comfortably keep eyewear in place Wrap-around 9-base curve lens offers a close fit with excellent side protection TSR Gray Lens, provides 99.9% UV protection