I normally wear a size 10 in women's shoes, so I ordered the corresponding size in these slippers. They are much too big. I always wear socks with these kind of slippers, anyway, so if I wear much thicker socks, these slippers do work okay. They're actually very comfortable. I ended up buying a smaller size, though, so the smaller ones will be my main slippers, especially when I wear thinner socks, but I like these bigger ones enough that I'm keeping them. The bigger ones actually seem softer than the smaller pair, which is strange! But I really like these slippers.