• “STRAFFR” is a fitnessbrand founded by Stefan, Torben, and Hanno.
  • Made in Germany
  • Stefan, a former athlete, inspired by his busy lifestyle, turned a Theraband into a smart fitness tool.
  • Used in over 30 countries.

"STRAFFR" is a fitness brand that originated from the personal experience of its founders, Stefan, Torben, and Hanno. Stefan, a former competitive athlete, sought a balance between his busy work life and extensive travel. Dissatisfied with existing fitness apps, he turned to using a Theraband. This led to the idea of transforming the traditional elastic band into a smart fitness tool.

The founders, with backgrounds in sports, engineering, and industrial design, collaborated to create the first working prototype. After quitting their jobs, they founded STRAFFR and embarked on an extensive development process, producing over 100 prototypes for testing. The positive feedback from testers helped refine the product.

To fund the initial production, the team launched a Kickstarter crowdfunding campaign, successfully reaching their goal. They also appeared on the TV show "Die Höhle der Löwen" (DHDL), where they presented their working prototype, although they did not secure an investment.

The brand faced challenges post-DHDL, dealing with a surge in pre-orders and unexpected production delays. Communication with customers was prioritized, and the team worked diligently to overcome supplier issues. Ultimately, they successfully mass-produced STRAFFR, and the fitness band, along with its accompanying app, is now used by users in over 30 countries. The founders continue to receive positive feedback and are committed to ongoing improvements to the STRAFFR product.

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  • The patented sensor system is integrated directly into the band.
  • Connects to the app via bluetooth
  • Suitable for every fitness level.


Download the STRAFFR app for iOS

Download the STRAFFR app for Android

The tape. The sensor.

The patented sensor system is integrated directly into the band. This means the band measures your performance during your workout, no matter where you pull.

Connected to the app via Bluetooth.

The band simply connects to your smartphone via Bluetooth. You can easily charge your band via USB-C and train for up to 24 hours on one charge.

Train anywhere. Whether at home or on the road.

Stick to your fitness routine and work out anywhere, anytime. The only thing you need is your band and the app.

Suitable for every fitness level.

STRAFFR training is for both beginners and advanced. Choose the band that suits you - either Medium with 5-15 kg or Strong with 15-25kg.

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  • Smart Fitness Band
  • Digital performance tracking with free app
  • Personalised support - The app adapts the workouts to your goals and fitness level.
  • Train more efficiently with live feedback
  • On Demand Training with World Champions and Ninja Warrior
  • Strength training / muscle building / yoga / sports - get fit with just one piece of training equipment
  • Known from "Die Höhle der Löwen" (The Lion's Den)


Take the fitness test to find out which band fits you!

Little space, maximum effect

The STRAFFR Resistance Band adapts to your life. It is easy to transport and takes up very little space. Perfect for efficient training at home or on the go, it allows you to stay active and pursue your fitness goals anytime, anywhere.

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