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

BUILT FOR
THE RUN
YOU’RE CHASING.
‍

YOUR NEXT RUN STARTS STRONGER

Advanced knee‑support engineering with intelligent digital coaching.
Sign up
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.

See even the smallest improvements

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.

From finding your feet to finding your edge

Run to learn
Man running on a treadmill wearing a knee brace in a gym with a motivational sign on the wall.
Man running on a forest trail wearing black athletic gear and a knee brace labeled bfoldES on his right knee.
Runner wearing a white hoodie, knee braces, and a backpack running on a desert road with red rock cliffs in the background.
Sign up

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

You will get early access to our product, with a 50% discount

Early access fee

This is a one-time payment
£19,99

Upon payment, you will receive exclusive
early access to our product

Get started
Balint Macsuga
foldES CEO

"Train smarter. Run longer. Be truly aware of your form.
‍
Join foldES early access and shape the future of running!

We’re excited to build this together."

— Balint
CEO, foldES

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
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● 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)
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● 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