Simply händelbar, Easy to slip on his foot and tighten the running on the Achilles tendon elastic and adapt to the foot length and the feeling. But this rear rubber band also has an apparently not tiring snap the left and right on the ankle, which also makes it easier to put on and off.
Even with longer snorkelling trips of 1 hour a day, I had neither a feeling of pressure still blistered feet.
In water it is progressing well without the leg muscles is stressed.
Recommendation from me.