Japanese Innovation. Danish Design.
Clinically documented biohack for muscle growth and improved circulation in just 15–20 minutes of training. Achieve the same physiological effect as hours of heavy training, without intense strain.
airmate SE
airmate PRO
Originale KAATSU Bælter
airmate SE
Professional equipment from Kaatsu Fitness International with electronic precision measurement and intuitive touch display.
Dual pump function provides individual pressure on each limb with three cycle functions (20/5, 40/10, 60/20) and up to 400 mmHg. Optimal when used with original Kaatsu belts.
airmate PRO
The most advanced Kaatsu machine on the market, with full control over all parameters. Free choice of cycles and intervals.
Delivers up to 500 mmHg and provides precise monitoring for professionals who require documentation and control. Optimal when used with original Kaatsu belts.
KAATSU Belt Set
Choice of KAATSU belt – why it is important.
When you choose a KAATSU or occlusion belt, it is far from irrelevant which belt you use. The choice directly affects effectiveness, comfort, and safety.
Overall, belts for occlusion training can be divided into two types:
- KAATSU belts
- BFR/occlusion belts (Blood Flow Restriction)
Most BFR belts on the market are made of rigid (non-elastic) materials. These can be further divided into:
- manual straps
- monitored BFR systems
Disadvantages of manual and rigid belts
Manual straps have no way to measure the applied pressure. Users are typically instructed to tighten the belt to a level that “feels like 7 out of 10” – a method that is highly subjective. Research shows that even with thorough instruction, significantly worse results are obtained compared to belts where pressure can be measured and controlled, e.g., by hand pump (sphygmomanometer), machine, or app.
Moreover, several studies point to physiologically undesirable effects when using rigid belts, including:
- Tendency to muscle wasting (atrophy) under the belt
- Increased blood pressure impact
- Increased pain during training
This is partly because during concentric movements (e.g., biceps curls), increased pressure is created as fluid is pressed against the belt. Since the fluid cannot be compressed and the belt cannot give, the tissue is pressed – causing both pain and potential tissue damage.
Rigid belts are also often wider, which increases the risk of 100% occlusion – something that must never occur in KAATSU training. The wider the belt, the more uncomfortable and restrictive it feels.
The optimal choice
The safest and most effective choice is therefore:
✅ A narrow, elastic belt
✅ Ability to monitor pressure
This combination not only offers better comfort but also ensures more precise, effective, and safe training – both for private use and clinical settings.
When using KAATSU or BFR training, the type of belt plays a significant role in comfort, safety, and training effectiveness. The original KAATSU belt is narrow, elastic, and specifically designed to optimize comfort, training quality, and physiological effect. The original KAATSU belt has been developed with over 50 years of research behind it and differs significantly from many of the wider, rigid BFR cuffs found on the market.
Our belts provide you with a more comfortable and effective training experience while minimizing the risk of side effects and discomfort.
What does the research say about choosing KAATSU belts?
Research clearly supports the benefits of narrow, elastic belts:
- ✅ Comfort and pain experience: Narrow, elastic belts are rated as more comfortable and less painful during use than wide, non-elastic cuffs.
- ✅ Blood pressure and nervous system impact: Elastic belts are associated with less increase in blood pressure and reduced nervous system load – an important factor especially for older and vulnerable users.
- ✅ Training effect and safety: A “head-to-head” study directly compared narrow, elastic belts with wide, rigid cuffs, and clearly concluded that wide cuffs can be inappropriate for certain groups.
- ✅ Several studies indicate that rigid, wide cuffs can cause undesirable effects, e.g., atrophy (muscle wasting) under the belt as well as increased risk of nerve damage.
Important differences you should know when buying KAATSU belts:
| Narrow, elastic belts (Original KAATSU belts) | Wide, rigid cuffs |
| ✅ Comfortable to wear throughout the training | ❌ More painful and uncomfortable |
| ✅ Optimizes training effect and muscle growth | ❌ Can reduce muscle growth under the belt |
| ✅ Low risk of blood pressure increases and nerve damage | ❌ Increased risk of blood pressure increases and nerve damage |
| ✅ Recommended for all, including vulnerable groups | ❌ Not recommended for particularly vulnerable groups |
| ✅ Mobility ensured during exercises | ❌ Restricts freedom of movement during training |
Why choose original, narrow and elastic?
It is no coincidence that athletes, special forces, and professional biohackers choose original KAATSU belts:
- Superior comfort – Makes training a positive experience
- No compromise on effect – Achieve maximum muscle growth and strength progress
- Minimize risk – Avoid unwanted physiological consequences and nerve damage
- Documented safety and effect – Based on extensive international research and clinical experience
In short:
When you choose an original KAATSU belt, you choose comfort, safety, and optimal effect without compromising your training.
Buy original KAATSU belts here
or
Contact us for personal advice
Train smarter, more effectively, and more safely – choose original KAATSU quality.
If you want more information about choosing a belt or have questions about the research behind it, feel free to contact us for professional consultation.
Handpump
Specially developed hand pump for Kaatsu training with fast adjustment and safe operation.
Delivers up to 500 mmHg and works optimally with original Kaatsu belts. Ideal for travel, home use, or the gym.
Learn how to use your KAATSU equipment correctly
Are you unsure how to use your KAATSU equipment in the best way?
We always recommend thorough education – it makes your workout safer, prevents mistakes and wasted time, and maximizes your benefits.
Throughout the introduction, you learn to:
Set the correct pressure specifically for your body
Train with optimal effect and safety
Make the best use of the cycle functions
Adapt the training to your goals and physical conditions
The key to the best results lies in the details – whether your goal is performance optimization, increased muscle mass and muscular endurance, improved VO₂max, longevity, or rehabilitation.
KAATSU Startpack
The starter pack includes 4 personal training sessions with a certified KAATSU trainer (PT), where you receive practical training, individual guidance, and a tailored introduction to the method – so you quickly and safely get the full benefit of your training.
*Price only valid with simultaneous purchase of equipment or membership.