I have found MJ's to be one of the best polarized glasses on the market. I had a pair of MJ's for about 2 years when they became really scratched up and cracked alittle around the nose piece. I called MJ up and they told me to ship it to them with a 10 dollar check and they would get back with me. So i did just that and after about 2 weeks, i had a brand new pair of the same style glasses shipped back to me!