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Man jogging on a city street with graffiti-covered walls and parked bicycles along the sidewalk.

Move Smarter,
Run Further.
Every Step Optimised.

Discover Your Potential

Advanced knee‑support engineering with intelligent digital coaching.
Close-up of a person's leg wearing a black smart knee sleeve with two small attached sensors on a running track.
Black foldES knee brace with sensor devices on a gray background.
Hand holding smartphone displaying a progress tracking app with scores, recent improvement, weekly and monthly trends on a blurred running track background.
AI - integrated, personalised training

Mentour AI

Two smartphones showing sports or fitness app screens with monthly trends, personal bests, knee angle progression, impact force over time, coach's advice, and recommended drills.

Your personal running companion — tailored guidance, form awareness, and performance feedback. Understand your movement, refine your technique, and stay motivated throughout your training journey.

Group of five young adults outdoors in a park, wearing knee braces and smartwatches, looking at smartphones showing different body temperatures from 76 to 94 degrees.

From Setbacks to Success. Stronger Every Stride.

A built‑in leveling system turns your progress into motivation, rewarding consistency and helping track improvements.
With foldES, runners gain the confidence of knowing they’re supported, informed, and never training alone.

Turn Data Into Progress. Master Every Mile.

Run to learn

Vibe

You are mostly running below 5km with no training.
You will learn:
✓ Consistency over intensity
✓ Basic running form
✓ Pacing awareness
You are mostly running below 5km with no training.

Venture

You see your potential, running above 5km and want to train for a longer run.
You will learn:
✓ Efficient pacing strategies
✓ Injury prevention & recovery
✓ Strength & stability
You see your potential, running above 5km and want to train for a longer run.

Veteran

You eat marathons for breakfast and you are looking for a real challenge.
You will learn:
✓ Energy management (fueling + hydration)
✓ Mental resilience under fatigue
✓ Micro-efficiency (form under fatigue)
You eat marathons for breakfast and you are looking for a real challenge.

Sign up to early access now!

With a £19,99 early access fee, you unlock the following:

50% discount upon product release

When the product is brought into the market, the estimated price will be £199. You will get a 50% discount on this price.

Be the first to try the product

On the first release, we will only produce a very limited quantity of the smart knee sleeves. Guarantee yourself a spot!

Exclusive insider updates

You will get monthly updates on the project progress and get a chance to influence the final product.

Meet the team

We are here to support you on your journey.
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Jan Gbur
CTO
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● Production Support Office in the aerospace industry

● First-Class MEng Master's in Mechanical Engineering at The University of Manchester

● European Baccalaureate at the European School of Brussels 1
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Bálint Macsuga
CEO
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● Innovation enabling award winner

● 2nd year PhD in biomedical engineering

● First-Class MEng Master's in Mechanical Engineering at The University of Manchester
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Jade Coleman
COO
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● LLM in Legal Practice (Master of Laws)

● BA (Hons) in Accountancy at the University of Greater Manchester

● Managed accounts and ran a small business from 2022 - 2025
Foldes company logo with stylized fish inside the letter 'd'.
”The concept addresses a real gap in how runners understand fatigue, recovery, and knee stability.”
Laura
Professional Coach
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“The combination of performance tracking and wearable support is a very promising direction for modern training.”
Patryk
Professional Athlete
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“Someone should have thought of this a long time ago.”
Roxana
Professional Coach
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“This is going to become a valuable tool for athletes looking to train smarter.”
Adam
Professional Athlete

Don't just take our word for it

foldES is collaborating with professional advisors and running coaches
Supporting the legal side of the foldES project
Orrick
Law Firm Representatives
Providing insider knowledge and expertise
Trusted Running Coaches
Univeristy of Wurzburg mentor with proven success
Dr Luis Larrea Murillo
Professional Scientific Advisor