A yarn used in thermal clothing that has natural thermal insulation properties. It collects and stores the heat generated by the human body. The material is environmentally friendly - created from coffee carbon, which is obtained from the husks of coffee beans.

Brubeck's proprietary technology, in which polypropylene microfibres wrap elastane. The result is a fabric with complex performance - exceptionally durable and moisture-wicking. With this solution, the elastane is not in contact with the skin, reducing the risk of skin irritation.