Wikipedia
PrimaLoft® is a brand of patented synthetic microfiber thermal insulation material that was developed for the United States Army in the 1980s. PrimaLoft is a registered trademark of PrimaLoft, Inc., the brand's parent company.
PrimaLoft synthetic insulations are used in the outdoor market in outerwear, gloves, sleeping bags, and footwear. It is also used as a down alternative in the home furnishings and bedding market in pillows, comforters, and mattress toppers.
In 2007, PrimaLoft introduced a product extension of performance yarns. The yarns are manufactured with 100% polyester or 45% polyester fibers and 55% merino wool. PrimaLoft performance yarn is used in socks, sweaters, base layers, and accessories primarily intended for the outdoor markets.
In 2010, PrimaLoft was awarded compliance with the bluesign criteria for environmental impact, establishing PrimaLoft as the first branded insulation manufacturer to obtain bluesign's system partner status. In 2015, PrimaLoft was confirmed as the largest global supplier of bluesign approved insulations. The bluesign criteria is designed for maximum resource productivity with respect to environmental health and safety.