2. Glass lenses (I tried plastic lenses, they scratch easily. I've heard that plastic lenses are "good" for welders, as the welding spatter doesn't stick. Big deal--the spatter shouldn't be getting to you eyeglasses to begin with.)
3. ANSI Z-87
4. Side shields to fit the frames
Nice thing is that safety frames cost LESS than the regular frames. Tells me something about the profit margins of regular eyeglasses.