First, I love the shoes and would recommend them. They are substantial shoes that feel so much better than the cheap bowling shoes I am replacing. The cheap ones felt like light house slippers or water shoes. The Dexters are sturdier, more comfortable shoes that will last a long time.As for sizing, I ordered 10.5. Unasked, the seller sent 9.5. I suppose that turned out to be a good thing because they fit perfectly. In 40 years of shoe buying 10.5 has always been my fit. These shoes definitely run large.