Features photochromic lenses that lighten and darken as outdoor lighting conditions change. Designed for comfort, the glasses come with spring adjusted temples that provide a customized fit on either narrow or wide faces, a soft nose bridge that adjusts, and a nylon brow that’s easy going on the forehead. The impact-resistant polycarbonate lenses absorb 99.9 percent UVA and B rays. Recommended for use during chipping, chiseling, drilling, grinding, machining, masonry, pouring/casting, power fastening, riveting, sanding and sawing. Transition from light to dark takes less than 20 seconds (allowing just 22 percent light transmission), and dark to light takes less than 3 minutes (allowing 77.5 percent light transmission). Air temperature may affect the lens transition time. Style: Half-frame; Frame Color: Clear; Frame Material: Magnesium Alloy; Lens Material: Polycarbonate.
Photochromic lenses darken and lighten as the outdoor light changes
Spring-adjusted temples allow for a flexible fit on narrow or wide faces
Strong frame with magnesium alloy temples provides durability
Soft, adjustable nose bridge and nylon brow enhance comfort
Polycarbonate lenses absorb 99 percent UVA and UVB
