Imelda Angehrn, dog breeder from Gossau, Switzerland

At first I was really tired. I had the kyBoot shoes on for 2–3 hours and then felt tired. My legs grew heavy. I don't have that feeling any more. You have to get used to it. You're using different muscles than in normal shoes, that's my interpretation, anyway.

Josef Städler glassblower from Switzerland

It definitely gives you a more upright posture and it makes you more flexible too. You stand on a soft sole. I like the fact that when I stand, I’m not rigid and motionless, I am moving around.

Beat Müller, music producer, Switzerland

A very airy feeling. I feel like I'm floating or flying. I've felt much better since getting these shoes. I can get out and about and walk round a lot. My feet don't hurt any more; instead I feel as if I could spend another five hours on my feet.