MBT inventor Karl Müller presents the kybun shoe

In 1996 the engineer Karl Müller invented the MBT shoe, revolutionising the shoe industry with its "rolling sole". After the sale of MBT in September 2006 Karl Müller developed the elastic-springy trampoline sole of his new brand kybun.

With kybun shoes you can experience the unique walk-on-air feeling immediately. "In kybun, you don't walk: you float. The walk-on-air feeling is unique", explains Karl Müller. Inside the kybun shoe, the foot rests directly on a springy, elastic sole, which provides the foot with maximum freedom of movement. This elasticity and flexibility in all directions is excellent training for the musculature and you feel how well it absorbs, shocks and adapts to your feet. Whether at work or at home, on a hike, walking around town, kybun shoes are so comfortable to wear that you’ll never want to take them off.

What makes Karl Müller's latest shoe invention so unique?


kybun shoes make exercising fun
Dr med. Christian Sommer, a consultant for orthopaedic surgery, believes that the kybun shoe is the ideal training device for everyday life. It soothes the entire musculoskeletal system and relaxes the spine. Eight years after her accident, Erika Wissmann can effortlessly walk again – thanks to the kybun shoe, which is very comfortable to wear. Dr med. Markus Müller can decrease the dose of pain medication he prescribes to his patients with osteoarthritis in their legs thanks to the extraordinary absorption properties of the kybun shoe. Reto Scherrer, who works as a radio and television moderator, is also grateful for the great level of comfort the shoes have brought him. He can now comfortably stay on his feet for as long as ten hours each day.

Everyone can improve their health with kybun shoes – without it even costing them any time.

Function/medical use
Inside the kybun shoe, the wearer’s foot rests directly on a soft, elastic sole, which provides the foot with maximum freedom of movement. This elasticity and flexibility in all directions is excellent training for the musculature. kybun shoes protect joints and relieve tension. The kybun shoe is the perfect shoe for people who have foot problems such as bunions or heel spurs, since its soft, elastic material continuously and dynamically adapts to the shape of the sole of the foot.
The special sole also minimises the strain on the back and joints.

More customer testimonials from well-known figures and doctors.


Opinions/customer testimonials

Andy Egli, Fussballexperte und Ex-Nationalspieler, Bern, Schweiz

Andy Egli, Fussballexperte und Ex-Nationalspieler, Bern, Schweiz

Der MBT war eine Revolution, dieser kybun Schuh übertrifft alle meine Vorstellungen des Wohlbefindens beim Gehen, Laufen, Joggen und selbst beim Stehen.

Thomas Schmid client consultation day Roggwil, Switzerland

Thomas Schmid client consultation day Roggwil, Switzerland

Would you recommend kyBoot shoes to others? Absolutely! I would even recommend them as an excellent product. In my case, I had actually just injured my knee in an accident. They helped me a lot at this time. How did you find out about the consultation day? I’m on the mailing list for the kybun newsletter, which is how I found out that this day was taking place here. Have you had any experience with the soft, springy kybun products? I had already worn MBT shoes before and was quite satisfied. I wore them a lot. I needed new ones so I started looking for a replacement and came across kyBoot. I’m very satisfied with them.

Edwin Barmet from Switzerland

Edwin Barmet from Switzerland

I had tried MBT shoes previously and I wasn’t too happy with them. But with kybun shoes, it’s a great sensation. The main change is the way you stand, which becomes looser and more comfortable, like standing on clay soil.