3M Smart Lens Protective Eyewear, 13407-00000-5 Photochromatic Lens, Black Frame  (Pack of 1)
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<b>[Product Information]</b><br>
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<li>Photochromic lenses darken and lighten as the outdoor light changes</li>
<li>Spring-adjusted temples allow for a flexible fit on narrow or wide faces</li>
<li>Strong frame with magnesium alloy temples provides durability</li>
<li>Soft, adjustable nose bridge and nylon brow enhance comfort</li>
<li>Polycarbonate lenses absorb 99.9% UVA and B</li>
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