I immediately sent them back due to the strange sizing that doesn't seem to have anything to do with reality. Partly based on reviews describing them as small (not surprising), I ordered a 12.5 which appears to be the largest male size available. I usually wear a 12 or 13 depending on the style and brand. But these things were just huge. Although I tried them on with fairly thick socks, they were too long. There was over an inch of open toe room. The overall quality was satisfactory for the very light clothing I had in mind (although I certainly wouldn't run or even run a distance in them). But I haven't decided yet if I should try a smaller size as the size seems totally unpredictable.