The description says it fits US size 5-7. I have size 5.5 feet, and I have to say they are too large. They are probably even size 6.5 or 7.  So my feet slip in them while walking around.<br /><br />Also, these slippers are made of a kind of plant fiber, perhaps bamboo or grass, making them non-machine washable. They absorbs a lot of feet sweat so they stay pretty dry, but their non-washability and sweat-absorbance make them VERY STINKY after wearing for a while. It has been two months since I bought them; now I dare not even wear them right after shower -- because the moment I step into these slippers, my clean feet are smelly again. You can literally smell the bad odor even if you approach your nose to the slippers. Thus, if you ever have sweaty feet, don't buy these. Buy something that can be washed and dried easily.