How it works:

PCM technology relies on phase change materials capable of absorbing and storing thermal energy as they change physical state.

On this T-shirt, the PCM is applied to the inner surface of the fabric as a thermoregulating treatment or coating. Positioned close to the body, it absorbs some of the heat when temperature conditions allow the phase change to occur.

Unlike an active cooling system, this technology operates without electricity, batteries or motorised components. The PCM is integrated into the garment: there are no inserts to remove, recharge or reinstall.

The thermoregulating effect is temporary. It depends in particular on the material's transition temperature, the amount of PCM applied, the ambient temperature and the intensity of the activity.

Key features:

• PCM (Phase Change Material) technology: absorption and temporary storage of thermal energy during the phase change.
• PCM treatment applied to the inner surface of the fabric, with no removable inserts.
• Passive operation, without batteries or an electrical power supply.
• Technical stretch fabric made of 88% nylon and 12% elastane.
• Base fabric weight: 175 g/m².
• Regular short-sleeved fit.
• Available colours: black, white and grey.
• Suitable for professional use, outdoor activities and situations requiring additional thermal comfort.

Operating mode (PCM technology)

Preparation: The garment is ready to wear. No inserts need to be installed and no electrical activation is required.

Use: Wear the T-shirt normally, in contact with the body.

Thermoregulating action: The PCM temporarily absorbs heat as it undergoes its phase change, helping to limit thermal fluctuations at garment level.

Thermal cycle recovery: When the temperature drops sufficiently, the material can release the stored heat and return to its initial state, depending on its transition characteristics.

The duration and intensity of the effect depend on the PCM formulation and the conditions of use.

Why choose this technology?

The TL-039 T-shirt combines a classic fit with thermoregulating technology integrated directly into the fabric. It offers a discreet solution without batteries or additional accessories, while retaining the simplicity of an everyday garment.

PCM acts as a thermal buffer by temporarily absorbing some thermal energy when conditions are favourable for its phase change. This can help improve thermal comfort during temperature fluctuations.

Its effectiveness remains limited by the material's thermal storage capacity and environmental conditions. It does not replace ventilation, hydration or measures to prevent heat-related risks.

1. Put on the T-shirt as you would a regular garment.

2. Wear it in contact with the body so that the PCM fabric can respond to temperature changes.

3. Allow the material to temporarily absorb heat when conditions permit its phase change.

4. When the temperature drops sufficiently, the PCM may return to its initial state and release the stored thermal energy.

5. After use, care for the garment according to the instructions on its care label.

PCM / THERMOREGULATING SYSTEM

• PCM technology integrated into the inner surface of the fabric.
• No removable inserts, power bank or electrical connection required.
• Passive operation based on heat absorption and release during the phase change.
• The effect depends on the transition temperature, the amount of PCM and the conditions of use.
• Follow the care label's instructions to preserve the properties of the thermoregulating treatment.

Technical fabric made of 88% nylon and 12% elastane, with a base fabric weight of 175 g/m².

PCM thermoregulating treatment or coating on the inner surface of the fabric.