I compared several pages skates and ordered these K2 with another provider. The skates are stable at the foot and head are also good, but I have the problem that these very strong at the calf had pushed and I could as long rides absolutely not imagine. However, I must say that I do not thin, but trained calves and perhaps why am somewhat more vulnerable there. For those who have a bit more vigorous calves, should consider whether they want to try it. Unfortunately, my back had.