
To ensure that your thermal sleeves support you in your regeneration for as long as possible, we have put together some tips for using the sleeves as well as some tips and instructions for using heat and cold. Please read the instructions for use carefully before using the thermal sleeves for the first time.
IMPORTANT USAGE INFORMATION
- We recommend that you keep the black zip bag that your thermal sleeve came in. So you have a practical storage bag in which you can transport and cool your sleeve easily.
- If possible, do not let your thermal sleeves get wet.
- Everyone has a different feeling. Even if we give you recommendations for use here, please listen to your own sensitivity to heat and cold and heat/cool the sleeve so that it is comfortable for you.
- If you are unsure how the Thermo Sleeve should best be used in your case, it is always best to consult your doctor.
CLEANING
To clean your thermal sleeves, simply use a damp cloth, gently wipe the surface and then allow the sleeves to air dry.
Attention: Your sleeves must NOT be put in the washing machine or in the dryer!
Caution: You should avoid using it on open wounds, as this increases the risk of infection.

Heat and cold have opposite effects on the tissue:
Warmth:
- The blood vessels dilate
- Metabolic processes such as nutrient supply and defense processes run faster
- The muscles relax
Cold:
- The blood vessels narrow
- Metabolic processes slow down
Cold Areas of Application
Cold treatment products are typically used for...
- ... muscle and joint injuries
- ... ligament strains
- ... Pains
- ... Bruises
- ... Regeneration after training

Refrigerator:
- The thermal sleeve should not be too cold for the cold application. A temperature of 2-8 degrees is optimal.
- Place your sleeve in a resealable bag (e.g. in the bag provided) or other sealable container in the fridge.
- Chill the sleeve for at least two hours.
- You can simply store the Thermo Sleeve in the fridge until you use it.
Tip: If you want to cool down on the go straight after your workout, simply take your Thermo Sleeve with you in a small cooling bag.
Freezer:
Does it have to be fast? Then you can also cool your thermal sleeves in the freezer.
- Place your sleeve in a resealable bag (e.g. in the bag provided) or other sealable container in the freezer.
- Cool the sleeve for a maximum of 20 minutes.
- Chill the sleeve for at least two hours.
- You can simply store the Thermo Sleeve in the fridge until you use it.
Attention: Make sure that the sleeve does not get too cold in the freezer. The cooling should feel comfortable as before.

Instructions for various application scenarios:
Pre-Cooling for Endurance Activities
Goal: Delay overheating during prolonged exercise in high temperatures.
- Step 1: Place the Thermosleeve in the refrigerator for at least 2 hours to ensure optimal cooling.
- Step 2: Apply the cooled Thermosleeve to the target area for 10-15 minutes before your workout.
- Step 3: Proceed with your training as usual, now equipped to handle the heat more effectively.
Reducing Swelling with Cooling and Compression
Goal: Minimize swelling and pain in acute injuries through the combined power of cooling and compression.
- Step 1: Refrigerate the Thermosleeve for 2 hours to activate its cooling properties.
- Step 2: Slide the cooled Thermosleeve over the affected area.
- Step 3: Wear the Flowell device over the Thermosleeve.
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Step 4: Select a medium to high-pressure setting on your Flowell device, adjusting to your comfort.
Important: Avoid applying compression directly on exposed injuries. -
Recommended Programs:
- Flow for gentle recovery
- Intense for deep pressure relief
- Intense Flow for advanced therapy
- Impulse for dynamic massage stimulation
Heating Applications
Goal: Relieve muscle tension, cramps, and joint pain with soothing heat.
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Common Uses:
- Alleviating muscle tightness and spasms
- Reducing joint pain
- Soothing general muscle soreness
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Step 1: Warm the Thermosleeve as per instructions in the user manual.
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Step 2: Apply the heated sleeve to the target area for 10-20 minutes, or as advised by a medical professional.

Microwave:
- Take the thermal sleeve out of the packaging to warm it up.
- Put the sleeve in the microwave for about 20 seconds → Important: Depending on which microwave you use, it may take longer or shorter to heat up.
- It is best to feel your way forward in 10-second increments.
- Check if the sleeve is the right temperature for you. It should feel comfortably warm, not hot.
- Repeat this step until the thermal sleeve is the right temperature for you.
- Important:
- - Do not heat your Thermo Sleeves in the microwave for more than 1 minute at a time and no more than 2 minutes in total!
- - If your Thermo Sleeves are frozen, first let them thaw at room temperature before warming them up.
Tip: If you want to cool down on the go straight after your workout, simply take your Thermo Sleeve with you in a small cooling bag.
Heating Your Thermosleeve (Oven Instructions)
- Unpack Your Thermosleeve: Remove the sleeve from its packaging before heating.
- Preheat Your Oven: Set your oven to 210°F (convection mode recommended).
- Heat the Sleeve: Place the Thermosleeve in the oven for about 2 minutes.
- Check the Temperature: Remove the sleeve and ensure it feels comfortably warm to the touch, not hot.
- Adjust as Needed: If the sleeve isn’t warm enough, return it to the oven for an additional 1 minute. Repeat as necessary until the desired temperature is reached.
- Safety Tip: Always handle the sleeve with care when checking the temperature to avoid burns.

1. Relieve Tension & Soothe Sore Muscles
Goal: Loosen tight muscles and promote relaxation.
- Step 1: Heat the Thermosleeve in the microwave or oven following the heating instructions.
- Step 2: Slide the warmed sleeve over the affected area.
- Step 3: Let the heat penetrate for 15–25 minutes to relax and soothe the muscles.
- Step 4: Repeat as needed throughout the day for continuous relief.
2. Combine with Flowell Products to Reduce Swelling
Goal: Enhance blood circulation and relax muscles while reducing swelling.
- Step 1: Heat the Thermosleeve in the microwave or oven as described earlier.
- Step 2: Place the warmed Thermosleeve over the target area.
- Step 3: Wear your Flowell device over the sleeve to combine heat therapy with compression.
- Step 4: Select a low to moderate pressure setting for comfort and safety.
Recommended Flowell Programs for Heat Therapy:
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Doubles: Balanced recovery and relaxation.
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Intense: For deep-tissue stimulation.
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Intense Flow: Advanced recovery with dynamic massage.
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Intense Pulses: Targeted, rhythmic compression.
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Duration: Use for about 30 minutes or until the heat fades. Reapply as needed for continued results.