So I'd heard to size up. Unfortunately for me this was a mistake. I wear an 8 in mens, so I got the 9 and they are definitely a bit too big. Overall they seem great. A little bit of white foam shows on the ends on the straps. Overall, good shoes, comfortable. Will definitely buy more.
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Big