For the strong legs

I use it with the Cressi booties and have shoe size 42. That's the only thing I could find fault somehow. The fins are in fact quite big for that, I think. The tensioning belt is very tight with me and I can imagine that 41 is a real problem. Even though it says to the "slots" that are intended for small shoe sizes, I'd better not use. On the one hand my instructor who advised not to others, I quickly got so pain instep area and on the soles.

Otherwise you have to be aware that the fins are very rigid and therefore may serve to give good power, but only with the right technique. Before my instructor has verklickert that nothing comes out of the knee but from the thighs (hip), I had quite a fatigue symptoms in the foot. Meanwhile, I have learned but to and after 5 dives I can still say that I will keep the fins until they are over. Can I recommend so well.