They are very weak and do not hold 12kg weight as described. I ordered the same size that I had on both previous pairs but on this style they seemed a bit smaller. Quality control failed again by not ensuring enough screws, I was one shy. She wears a size 1 and these for perfectly. The newer products arent even close to the quality with which these used to be made. schlecht, schlecht, schlecht! Il pacco è arrivato in tempi rapidissimi. I had a small issue where you could hear static feeding back when there was no activity on the mic (in between songs) and the mic wasnt picking up very loud. The headset then walks you through setup and a quick update. Order these shoes, you will not regret it!