The power of community
What makes Underground truly unique? The people.
Our community is the heart of the club. Here, you don't train alone, but together. Whether you're new to training or have been training for years, you'll be part of a group that motivates, encourages, and helps you persevere even when you feel like giving up.

We know each other's names, greet each other sincerely, and celebrate each other's growth. We support without judgment. In class, but also outside of it. Because we believe that sport only truly makes an impact when it becomes part of your life.

The vibe: raw, pure, and real
The atmosphere at Underground can't be captured in words—you have to feel it. But when we try, we say: authentic, powerful, and connected.
No fuss. No show-offs. Just people who want to work hard, push boundaries, and improve together.

Every training session is fueled by music, energy, and a mentality of "do what you can, and then some." You don't have to be the strongest or fastest—just be willing to give it your all.

Coaches with attention and passion
Our trainers aren't your average instructors. They're experienced, dedicated, and energetic. They see you. They challenge you. They help you grow in a way that's safe and effective.

Whether it's honing your technique, finding the right form, or overcoming mental hurdles—you're never alone. Our coaches pay attention to everyone: from the quiet beginner to the fanatic athlete in the front row.

More than a class—an experience
Every class at Underground is more than an hour of movement. It's an experience. A moment of focus, strength, release, and connection. You come in with tension or stress and leave with a smile and renewed energy. We also regularly organize extras:

Themed classes and clinics (e.g., sparring, boxing technique, breathing)
Community challenges (setting and achieving goals together)
Outdoor workouts
Social events – just for fun
For everyone – absolutely everyone
You don't have to be a sports hero to join. In fact, at Underground, many members simply start with the idea, "I want to get fitter, but I don't know how yet."
And that's exactly what we're here for. Our classes are structured so that everyone can participate at their own level. No pressure, no competition – just your pace, your growth.

Men or women, young or old, beginners or advanced – everyone is welcome.

Why Underground? Group classes with results – physically and mentally
A close-knit and open community – you'll feel right at home
Attentive coaches – personal, engaged, and professional
Unique atmosphere – raw, genuine, inspiring
Urban setting – stylish, powerful, and different from the rest
All levels welcome – train at your own pace
Fun and progress – every class
Your place, your strength
In a world full of hustle and bustle, expectations, and distractions, Underground is a place where you find yourself.
A place where you are challenged, supported, and celebrated. Where your body becomes stronger, but also your mind becomes clearer.
Where you don't just exercise, but grow. As an individual and as part of something bigger.

Join us – and discover how far you can go
Are you about to start? Not sure if it's for you?
We'll say it like it is: you will discover yourself. But you will also surprise yourself. And you'll never do it alone.

Welcome to Underground.
Where it's all about commitment.
Are it about growth. For you.