Thermal insulation specialist Thermore has added another dimension to its Aria down alternative, with the product now available in a blend with 50% recycled fibres.

Launched last year, the Aria range is also chemical free and hypoallergenic, the company says, and is available in fill weights of 60, 115 and 170 grams. Made of "98% air," it is voluminous yet light and ideal for contemporary garments.

The move follows Thermore's new focus on more sustainable product design, including a company strategy to remove all PFOA and PFOS (perfluorooctanoic acid and sulfonate) chemicals from all products.

The company's Classic, Ecodown, Rinnova and Thermosoft ranges have also been awarded Bluesign certification.