I've only wore them twice. I like them, and I've actually had them help me on 2 submissions already... but they actually HURT me once too. The guy I was rolling with was trying to get hooks in from quarter position and when I tried to escape my leg his wrestling shoe stuck to the grip material and stopped the escape. LOL. It's really the only thing I could ever see happening like that... but it happened on the very first day I wore them. I don't plan on getting another pair, but it's not like I'm going to shelve these or anything. Just a heads up for anyone thinking of getting these shorts.