4th pair of this model I do not get enough. I already raced over 2 km with a lot of concern back or bulb. easy to put on and comfortable to tire. The square leather laces have the advantage of good proprité clings so no double knot needs. The same rubber sole if does not use top quickly (I keep mine 2 to 3 years but I have a tendency to wear out the sole outside of the heel (probably because I do not get quite the feet). The interest of the lace that goes around the shoe and that even if the leather widens can be compensated with tightening. very good product.