Innovation for Your Health
Swiss
sole technology

Durability Redefined
FOREVERFOAM® revolutionizes healthy walking and standing. Inspired by the softness of rice fields in South Korea, the Swiss Müller family developed the technology for the heel sensor of MBT shoes for the first time. Since then, it has been continuously improved.
Soft-elastic PU foam provides lasting comfort, reduces pressure, and noticeably relieves your joints. This alleviates pain and eases your body.
Our Technology, Your Benefits
-
Durability
Unmatched sole quality -
Comfort
Soft-elastic cushioning and stability -
Health
Pain-free walking and standing
Lasts Up to Three Times Longer
FOREVERFOAM® takes the durability of shoe soles to a new level. Because our soles…
- retain their shape, elasticity, and performance.
- outperform other materials in rebound power and structure.
- ensure even pressure distribution and optimal cushioning.
- provide constant energy return with every step.
“Sustainability begins with durability. A shoe that lasts is good for both you and the environment.”
Karl Müller, CEO kybun Joya Retail AG
Joya Helps with Pain
Whether it’s heel, knee, hip, or back pain: Joya shoes can provide lasting relief.
Learn more
“Our feet are the foundation of our health. FOREVERFOAM® delivers lasting comfort that makes a difference.”
Claudio Minder, CEO kybun Joya Retail AG
3 Sole Types, One Innovative Technology
Based on FOREVERFOAM®, there are three different soles: ACTIVE, SENSO, and WAVE.

ACTIVE – Highest Performance
The sole for active people: Cushions effectively, rebounds with every step, and gives you reliable grip on any surface.

SENSO – Maximum Cushioning
No more pressure: Your joints, feet, and back are relieved with every step.

WAVE – Optimal Support
Noticeably more support: The sole supports your arch and adapts flexibly thanks to the multi-fit insole.
Proven by Studies: Joya Promotes Health
That we keep our promises is evidenced by numerous studies. The association Aktion Gesunder Rücken e.V. (AGR) certifies Joya shoes as particularly back-friendly.