The Sorona® Story

Sew the seeds of change

We believe science should learn from nature—that a product is timeless when it’s renewable, and that a single fiber can make a world of difference. We know that we never have to sacrifice performance to be sustainable, or the other way around. To us, finding ways to leave a smaller footprint just comes naturally, so we do it every step of the way.


Ever since the early 1900s, DuPont has been revolutionizing the world of fiber and polymers. From the first plastic-coated fabrics developed in the 1910s to groundbreaking fibers like the versatile nylon, neoprene rubber fabric, bullet-resistant KEVLAR®, and even Tyvek®, DuPont has spent over a century creating textile products that transform the way we live and work. And as a product that’s on the forefront of the shift from oil-based materials to bio-based ones, Sorona® fits perfectly into a legacy of meaningful, performance-based innovation — one that we have to continue to sustain our world.

Renew Your World

When we spot a hint of greatness, we give it a second look. We explore untapped possibilities and find a way to make it something truly special. This is how, after decades of research and asking the right questions, scientists discovered a way to produce PDO—a building block with endlessly versatile potential—using a biological process that would have a global impact:

The process begins by harvesting crops.

Sugar, or glucose, is extracted from the crops.

Microorganisms are added to the glucose to begin a fermentation process (similar to the production of alcohol).

Fermentation replaces chemical synthesis, producing PDO (1,3-Propanediol) in a natural way.

TPA (terephthalic acid) is added to the Bio-PDO, creating a molecular bond.

The result is Sorona®: a revolutionary, high-performance polymer whose positive impact is felt by yarn spinners, manufacturers, designers, and consumers across the globe.

Beauty in Nature

Because Sorona® polymer is partially plant based, it reduces reliance on fossil-based materials. The revolutionary Bio-PDO compound turns a formerly chemical process into an eco-efficient biological one.



Sorona® renewably sourced fiber is one of the first 11 products approved as part of the United States Department of Agriculture (USDA) BioPreferred Program for certified bio-based products.


The bluesign® system unites the textile supply chain to jointly reduce its impact on people and the environment, ensure responsible use of resources, and guarantee the highest level of consumer safety.


Sorona® fiber has undergone stringent testing and has been proven to be safe for use by adult products with direct, prolonged skin contact, earning it Class l certification from Standard 100 by OEKO-TEX®.


Sustainable Brands is a learning, collaboration, and commerce community of over 348,000 sustainable business leaders from around the globe. Their mission is to empower more brands to prosper by leading the way to a better world.


Textile Exchange is a global non-profit that works closely with their members to drive industry transformation in preferred fibers, integrity and standards and responsible supply networks.


Cascale is the global nonprofit alliance empowering collaboration to drive equitable and restorative business practices in the consumer goods industry. Spanning over 300 affiliates around the globe, we are united by a singular vision: to catalyze impact at scale and give back more than we take to the planet and its people. Formerly known as the Sustainable Apparel Coalition, Cascale owns and develops the Higg Index and a unified strategy for industry transformation.


In 2017, DuPont received the Frost & Sullivan Best Practices Award for European Bio-Based Materials Company of the Year because of its innovative work with Sorona® fiber.