Crowdfunding since 2010

The inflatable multi-functional pillow for workout, yoga and relaxation with our patented pump technology. Made in Germany & Fairly produced.

"Small but powerful". This is the best way to describe the inflatable bolster with patented pump technology. The innovative multifunctional bolster can be the perfect companion for your fitness, yoga and pilates workouts, as well as for travelling and many other applications. Without an additional pump unit or inflation by mouth, the pressure of the BOLST'air can be adjusted to your individual needs.
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Funding period
6/18/21 - 8/16/21
from September 2021
Website & Social Media
Minimum amount (Start level): 30,000 €

The money will be used exclusively for the production of your BOLST'air.

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What is this project all about?

Special times require special products and actions. Particularly due to a lack of exercise and genuine relaxation, physical complaints are on the rise.

Working in a home office is also becoming more and more popular, but it brings with it a new danger: a further lack of exercise due to the fact that there is no longer any way to get to the workplace.

Therefore a versatile training device would be helpful, which you can use for fitness workouts, yoga sessions, meditation and stretching exercises.

This is exactly where we come in with our BOLST'air and offer you a maximum efficient companion for training and everyday life.

Selection of exercises with the BOLST'air from our team of experts:

BOLST´air Force (strength & endurance through proprioceptive muscle training)
BOLST´air Stretch (supportive and correct stretching exercises)
BOLST´air Spirit (relaxation postures to connect body and mind)

For this we have worked meticulously with certified yoga & pilates instructors, but also physiotherapists and fitness trainers, as well as sports scientists over the last two years of product development.

Now we are ready for the market - the feedback from the many testers has been overwhelming and we are happy to announce that our BOLST'air may now see the light of day.

Scientific studies prove that unstable underpads like our BOLST'air help to train the deep muscles and thus alleviate back pain in the long term and also preventively.

This is what makes the BOLST'air so unique:

Our BOLST'air fits in any bag due to its small pack size and low weight, can be taken anywhere and is ready for use in a few seconds thanks to the integrated inflation mechanism, whether outdoors or in the studio.

The bolster cushion fits comfortably and individually to your back and body due to the inner air bubble. In addition, it helps you to relax better as well as to set challenging, new training stimuli through balance and instability.

Our BOLST'air supports you perfectly in your yoga and Pilates practice to be able to take up more correct and comfortable resting body positions and to hold them longer.

The instability allows you to increase the difficulty of strength exercises, so that additional muscle groups are trained and the deep muscles are improved by the required balance. In addition, the BOLST'air serves as a tool for those who want to work on their flexibility.

Find out more about the BOLST'air on our website.

What is the project goal and who is the project for?

We at tronature are adventurers by passion and a part of the target group ourselves. We like to travel and do sports everywhere.

Tools for fitness, yoga and pilates workouts are essential components to perform the exercises correctly and to set new training stimuli.

You are not looking for the one hundredth low quality workout tool in your equipment jungle that was produced under unfair conditions, but you want to rely on using a versatile, high quality, fairly produced and sustainable workout tool as much as possible, which thanks to the innovative technology can also be used after the workout in everyday life or while traveling? Then we can recommend our BOLST'air to you. All these problems we just mentioned are solved with our multifunctional bolster.

Quickly inflated and also packed away again, our multifunctional bolster can be taken anywhere and anytime. There are no more compromises again for a high quality workout wherever you are.

The BOLST'air is aimed at all those who want to do something good for their body and flexibility. Thanks to the patented inflation mechanism, the BOLST'air can be adapted to the level of beginners, experts and professionals. The BOLST'air has already been tested and proven by:

  • Yogis
  • Pilates enthusiasts
  • fitness freaks
  • Travelers
  • Crossfitters
  • Water sports enthusiasts
  • Yoga studios / retreats
  • Office workers
  • Sports teams
  • professional athletes
  • people working in a home office

Why would you support this project?

Together we have a vision. With the BOLST'air, we want to provide the perfect companion for your training and everyday life. Sustainability, versatility and fair production are very important for us, which we have of course also taken into account in the selection of materials for our BOLST'air.

These are the materials the BOLST'air is made of (watch the video)

  • 100% biodegradable TPU air bladder
  • 6.5 recycled PET bottles for the weatherproof fabric of the outer shell
  • made in Germany: sewn by the CARITAS Wendelstein Werkstätten in Rosenheim, Germany
  • Idea, conception, development, quality control, packaging and shipping also in Germany.

Here is an insight into the production (To the video)

We also want to offer as many people as possible the opportunity to quickly and easily bring variety into your daily training routine and to be able to train variable.

With our patented inflation mechanism we have the chance to develop a training tool, which has almost infinite application possibilities and can be adapted to your individual needs. The BOLST'air can be used in the areas of

  • Yoga & Pilates
  • Fitness (strength & endurance)
  • Flexibility

and can also be used as a travel pillow for adventurers like backpacking trips or in the campervan.

But you also support our overall project "tronature" - a platform for adventurers who simply want to experience more, especially with friends in nature.
We provide a lot of content about exciting sports, travel destinations and other activities. In addition, we develop the appropriate hardware by ourselves, so you can already be excited about what we will bring in the future!

How will we use the money if the project is successfully funded?

Our small but quick-witted team has been around for a few years now. With one of the last big innovations of us ( an inflatable roof rack, we could already establish our structures and processes.

You can also visit us in our store.

In this project your money goes 100% into the production of your own BOLST'air.

A lot of sweat and heart blood is in this baby, since we started with the development 2 years ago.

The BOLST'air is more than "just" a product for us. It has given us a lot of joy and hours together in our great team.

Since then, the BOLST'air has been our daily companion in training and everyday life, keeping us fit in an efficient way.

Now the time has finally come and we also want to offer you the opportunity to secure your own "buddy" for training and everyday life with the BOLST'air.

With the returns from the crowdfunding campaign we can secure the foundation for the first production of our BOLST'air. The expensive construction of the tools for welding is in the starting blocks and with your help we can start right now.

Who are the people behind the project?

Behind the BOLST'air there is the entire tronature team!

At its core, tronature is about experiencing adventures. We love to be outdoors and combine sports with nature.

tronature inspires you to try new sports, presents adventures to relive and helps you to choose the best and most innovative gadgets for travelling.

If you want to know for example what wingfoiling is or what you should keep in mind when traveling with your dog? Then you've come to the right place!

Together with experts from the respective fields, we do not only cover exciting topics in terms of content, but also offer you the physical tools to get started through our own product developments and cooperations with innovative start-ups! So go out and play ;)

Team tronature

The crowdfunding project has been successfully completed. Supporting and ordering is no longer available on Startnext.

  • The processing of orders placed will be handled directly by the project owners according to the stated delivery time.

  • The production and delivery is the responsibility of the project owners themselves.

  • Cancellations and returns are subject to the terms and conditions of the respective project owner.

  • Revocations and cancellations via Startnext are no longer possible.

What does this mean? 
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ShredRack GmbH
Tobi Deckert
Bucheckerweg, 41
83313 Siegsdorf Deutschland
USt-IdNr.: DE310387180


CARITAS Werkstatt Wendelstein

Here the BOLST'air are carefully assembled and packed.

Climate-positive company (Fokus Zukunft)

We work climate neutral. The positive CO2 footprint can only be a first step for companies to improve the world.

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