I liked the idea of a triathlete shoe. I'm not, but I hoped use them whithout sox in hot places. No way, the stiches at the tongue base rub to much, at least my feet,no like other asics models like the gt 2000 gtx or the blur33 wich I love. this was the only problem I had but for me a big one I think that will be a problem even with sox, I have sensible feet.