text: Second pairs of this model Gel-Kayano (#21). Fit as expected (they always run 1/2 size small).  I always order a second pair before the model changes - just in case the next one is off (happens every few years). Great support for narrow, flat, overprinting feet. I clock at least 15 miles/week walking and even used them for some light hiking recently (although it was a bit rough on them). I still have second pair in the box.