US 13s were too small for me. The fleshy part of my toes were pressed right against the the tips of the shoe. I'm a bit annoyed because I had completed the ASICS shoe fit test and it said I was a definite 13. I had first gotten athletes foot in a pair of ASICS because my toes were all mushed together. If you have bigger feet like me I would not recommend you buy these shoes unless you're in the USA and can ship them back easily. I had a friend send me shoes here in Korea.