Climbing shoe stretching is $15 for 1 shoe or $25 a pair. The shoes must be in reasonable condition as the stretching is quite a severe process and it puts a lot of strain on the shoes. I can get approx. half a size out of them, sometimes more, depending on the model of the shoe. If, after the initial stretching and trying them on, you want to go for a bit more, then there is no extra charge.