Discover a new approach to thermal comfort with our brand new PCM (Phase Change Material) cooling vest. Designed for sports and outdoor activities, it uses removable thermal inserts that absorb body heat to provide passive cooling, without batteries or an electrical power supply.
Its sportswear design combines a lightweight, breathable mesh construction, an ergonomic fit and adjustable straps to promote freedom of movement and adapt the fit to your body shape. The inserts can be pre-cooled before use and reused after reactivation.
A technical, functional and reusable vest designed to support your activities in hot weather.
Unisex style.
Available colours: black, off-white, pink / teal, royal blue / sky blue, fluorescent green / bronze.
PCM technology relies on phase change materials that can absorb a significant amount of heat as they transition from a solid to a liquid state. The inserts are pre-cooled to prepare the material for its operating cycle.
Once placed in the vest's compartments, they gradually absorb body heat during the phase change. Unlike a thermoelectric system, this process operates without electricity, batteries or motorised components.
After use, the inserts can be removed and cooled again for reuse. The operating temperature and cooling duration depend on the PCM formulation, the amount of material and the conditions of use.
- PCM (Phase Change Material) technology: passive absorption of body heat through a phase change.
- Removable cooling inserts that can be reused after cooling.
- Operates without batteries; no electrical power supply is required.
- Technical sportswear mesh construction designed to promote airflow.
- Sleeveless design with shoulder straps and adjustable fastening straps for a secure fit and freedom of movement.
- Functional pockets and compartments to accommodate the cooling system components.
- Suitable for sports, outdoor leisure activities and travel in hot weather.
- Independent of water evaporation: the vest does not need to be soaked to provide cooling.
- Preparation: Cool the inserts according to the manufacturer's instructions until the material reaches the required state for use.
- Use: Place the inserts in the designated compartments, then adjust the vest to ensure a comfortable fit.
- Cooling action: The inserts gradually absorb heat as they undergo their phase change.
- Reactivation: After use, remove the inserts and cool them again to prepare for a new cycle.
Cooling duration depends on several factors, including the amount of PCM, ambient temperature, activity intensity and how the inserts have been prepared.
This PCM vest relies on passive thermal technology, with no batteries to recharge or electrical system to maintain. Its simple operation, reusable inserts and sportswear design make it a practical solution for users seeking additional thermal comfort during activities in hot weather.
Unlike evaporative cooling solutions, PCM technology does not rely on water evaporation and can therefore be used in different humidity conditions. However, its actual performance depends on the environment, the level of physical exertion and the characteristics of the inserts.
1. Remove the PCM inserts from their compartments.
2. Place them in a freezer or refrigerator, following the manufacturer's instructions and the reactivation temperature required for the material.
3. Wait until the inserts reach the required state for use. Follow the preparation time specified by the supplier.
4. Reinsert the cooling elements into their designated compartments.
5. Put on the vest and adjust the straps to achieve a comfortable fit.
6. After use, remove the inserts and repeat the cooling cycle before the next use.
PCM INSERTS / COOLING SYSTEM
- No power bank, batteries or electrical connections required.
- Removable inserts designed to be reactivated by cooling and reused.
- Follow the manufacturer's instructions regarding preparation method, required temperature and cooling time.
- Remove the inserts before washing the vest.
- Clean the inserts separately according to the supplier's recommendations. Do not puncture, cut or expose them to unauthorised heat sources.
- Wash the vest according to the care instructions on its label. Do not immerse or wash the inserts together with the garment.
Breathable technical textile mesh: 100% polyester.
Removable, reusable PCM cooling inserts.
All Thermalli products can be customized to suit your needs.
Styles and design, colors and prints, location of heating zones… Give free rein to your creativity.
Contact us!
229 rue Saint-Honoré
75001 Paris
The heating elements are certified and comply with European CE and RoHS standards.