I had ordered these as a replacement to my SmoothFlex shoes from years ago that are finally wearing out. Same great shoe other than I ordered the same size as my old ones and these are about 1/2 size larger. But I wore a half size larger in the old shoe than normal so maybe these are more true to size than the old version. I will probably order another pair in a 9 instead of a 9-1/2! Love the shoe!