Thanks for that interesting link, Tobus. Obviously, like everything else, these shoes have evolved over time to their present form. I have encountered other comments where discussion over such inoffensive items as shoes, socks, even shirts etc. seems to trigger the most intemperate of reactions. Perhaps this is symptomatic of internet fora where people, hiding behind a keyboard will say things they would not dream of to someone beside them in a bus queue. Enough said I think.