There's no way these are a true size 6. I have small feet and typically wear size 6.5 in tennis playing shoes. I ordered these a half size smaller just to make sure, but when comparing the way these fit to my previous Prince pair and my Nike running pair, both size 6.5, there's just no way these are true to size 6's. Maybe in the larger sizes they are, but these feel identical to the size 7's I tried with the Resolution 5's (back when they didn't make them as small as size 6.) I'm very disappointed and needless to say will be returning these.