I purchased these goggles for oxy/acl cutting thinking it was around a shade 5 and a comfortable fit. When I received them the first thing I did was put them on and noticed that the plastic was so hard and the edges were so sharp that when it touches your nose it hurts. Also it didn't fit snugly to my face no matter how tight I made it. After some slight modifications to make the nose area more comfortable I went to cut some steal. Well that's when I finally figured out what shade it was, must be a 10-11. I couldn't see anything. So overall I got what I paid for. If I would have just went to harbor freight I would gHave seen the same pos's and never have got them. Happy buying y'all.