Thank goodness I read the reviews.....I normally wear an 8, sometimes 7 1/2, and based on reviews ordered a 7. They fit great, but a tad big. (With ankle socks they worked great.) They are authentic Adidas, and I would recommend sizing a full size down, and ordering some Magic Erasers, (which clean everything off of them ASAP!), and some medium thick ankle socks. I have been wearing them for over a month, and love them.