US-based down and feather processor Downlite, which supplies responsibly sourced performance fills to the outdoor apparel market, has partnered with US-based Cocona Inc to develop a new performance category of thermoregulating down.

ClimaSMART utilises advanced fabric technology from Cocona, marketed under the brand name 37.5 (the body's core temperature in degrees Celsius).

37.5 down blend is a mix of down and polyester fibre permanently embedded with naturally derived 37.5 active particles which attract and release moisture vapour the body produces when it heats up. It then uses infrared energy the body creates to drive excess moisture out.

According to third-party studies at Inside Climate Munich, 37.5 technology can reduce the Heat Index – a primary measurement of the discomfort felt as a result of temperature and humidity next to your skin – in the microclimate by 8°C (14° F) to provide optimum comfort levels in a wider range of environments and activity levels.

"We are very pleased with the performance-enhancing benefits 37.5 technology brings to down," says Chad Altbaier, vice president of Downlite Outdoor. "37.5 down blend manages excess heat and moisture more efficiently than down alone while still retaining the beautiful feel, loft and insulating properties of natural down. In addition, it dries 40% faster than natural down alone."

ClimaSMART powered by 37.5 is available in either white or grey duck and goose down in multiple fill powers and with RDS certification. Downlite will present ClimaSMART powered by 37.5 among its other down offerings at the Outdoor Retailer Summer Market in Denver on 23-26 July.