3MSafety Glasses, SecureFit 500 Series, 20 Pack, ANSI Z87 Impact Rated, Adjustable Ratchet Temples, Sporty Protective Eyewear, Indoor/Outdoor (IO) Anti fog Anti Scratch Gray Lens, Black Frame

Super lightweight. Really like the adjustable angles of the temples, as you can adjust it when you have to don an elastomeric respirator.The temples are real flexy and lay tight and flat against your head, great when you have to wear earmuffs. The only issue is if they hold up to prolonged work outside in the sun: hopefully they don't prematurely crack due to UV exposure, as you have to flex them quite a bit every time you put the glasses on.The end of the temples widen at the end, so you can attach friction-fit eyeglass straps, which hopefully won't pull off easily. Or you can drill a hole in them (lots of material), to hold straps with clips.I wish these were darker; I still have not found an adequate substitute for the Mojave Blues, the best dual purpose sunglasses ever made. Dark enough to protect your eyes on a cloudless day, yet light enough tint to wear indoors under almost all conditions. Tried the KLEENGUARD Nemesis indoor/outdoor and too light, lighter than even these 3Ms.