Ordered 9.5 U.S. Regular width. Received 10 U.S.  The fit just fine. I think a 9.5 would have been fine though.  I wore them twice on the range and 18 holes so far. The ground was dry and I had very good traction. They are very comfy too. Great buy at this price. They really feel like a running shoe than golf cleats. I was worried trying a soft spike and now this is all I will buy.