I actually asked my recruiter about this way back when. Don't wear it unless you have some documentation from medical. My recruiter said a DI will pick it out in a heartbeat. Try to go w/o if youy can. I used a neoprene knee brace, but I think that was more in my head, I was fine without it. However, if you wear a neoprene body glove ankle brace or something similar, you could probably get away with that since you can wear it under your crew socks. Just a thought.