Great fit, nice and snug around my foot. Has a really comfortable feel to it. I bought this for an upcoming tough mudder. I hope it does well. I normally wear an 11 1/2 or sometimes a 12. I ordered these in a size 12 to be on the safe side. It feels a bit big but not too much. I probably could have gotten the 11 1/2 and been just fine. Still feels and fits good, a little more room in the toes but overall good fit.