My son wears an 8/8.5 and I bought the 8.5 and they fit perfectly. I bought the line green color and they are super cute, I think they might be my favorite shoes I've ever seen on my 4 year old son. They are pretty stiff but the cleats aren't hard plastic, they are a tiny bit rubbery-feeling. That's a good thing grip-wise for a toddler who might also walk on concrete or black top on the way to a soccer game.