I've been running in Saucony shoes for 5-6 years and I always wear a size 10 men's shoe regardless of style. Except for this shoe which seems to fit a size 9 for me. It was only after wearing this shoe for over a month when I injured myself that I finally realized that the roomy sock isn't because it's this design and that my foot wasn't sore because of a disruption in my period, it was because the shoes were literally too big. I put my old Saucony (Kinvara) shoes next to the Freedoms and the Freedoms were honestly a full 1/2-3/. 4 is longer than Kinvaras, although they are both a size 10 for men. So if you want to buy these shoes without trying them on in the store, I would recommend going half a size down from what you normally wear. and go from there