I ordered these in a size 7 first which is what I normally wear. They were way too small but the memory foam was soooo comfortable I had to return for another size. So I ordered a 7 1/2....I definitely could’ve gone up to an 8 but I’d rather my shoe be a little snug if I have the choice. I’m thinking the more I wear them the more worn in they’ll become. I’m a medical assistant, on my feet all day...these have been one of my favorite amazon purchases so far! For the price you simply cannot beat it. I highly recommend ordering a half size, if not full size up.