Photochromic lenses darken and lighten as the outdoor light changesSpring-adjusted temples allow for a flexible fit on narrow or wide facesStrong frame with magnesium alloy temples provides durabilitySoft, adjustable nose bridge and nylon brow enhance comfortPolycarbonate lenses absorb 99.9% UVA and B
3M SmartLens Transitioning Protective Eyewear
Brand: 3M Personal Protective Equipment, Model: 13407-00000-5, Color: Gray, Size: 1-Pack