Phase

The PHASE line consists of cooling garments and accessories made from phase change material (PCM).
This material is encapsulated in a thermoplastic and, depending on the application, takes various forms.

UNDERHEAT® PHASE PCMs are available in different temperatures and have an extremely high latent heat capacity, allowing them to maintain their low temperature for an extended period. This temperature remains constant at a pre-set value above 0°C, preventing thermal shock caused by sudden drops in temperature.

Our PCMs are biodegradable and reusable, fully in line with UNDERHEAT®’s environmentally friendly approach. Models such as the BIOCOOL X offer the longest cooling duration, combined with reduced weight and excellent ergonomics.