Primaloft has announced that its biodegradable fiber, Primaloft Bio, is chemically renewable. According to the company, this makes Primaloft Bio the first 100 percent recycled, biodegradable synthetic insulation and fabric fiber proven to be renewable for use in a circular economy. Third-party testing has shown that the fibers can be chemically recycled with a 95 percent yield rate. The chemical process breaks down the polyester to its basic components so that it can be rejuvenated into a new, high-performance material without compromising its original integrity, the company explained. After chemical recycling, Primaloft Bio fibers can be reused to produce new insulation or fabric fibers that are said to maintain the same level of performance.

Primaloft Bio fibers are made from 100 percent post-consumer recycled material and break down when exposed to specific environments, such as a landfill or the ocean. The fibers have been enhanced by Primaloft to become more attractive to the microbes that naturally occur in these environments, so that they eat away at the fibers faster, returning the fabric or insulation to natural elements. One of the advantages is that the fibers will biodegrade only when exposed to these naturally occurring microbes, in landfills or bodies of water, while the fabric or insulation remains highly durable throughout its usable lifecycle in a garment.