its probably not what you want to hear, but the best thing would be to try them on prior to buying. if thats not possible, order from someone that will exchange for a different size if need be. You want your boxing shoes snug so you dont trip over your feet if they are a little too big. I train muay thai and cross train boxing, so im used to being barefoot all the time and dont like wearing shoes. When I finally got some boxing shoes, the ones that "felt" good on my feet with ample toe room, were too big and clumsy feeling while training. So I had to get a smaller size. Training in the new shoes felt great.