Seawool yarn, fabric made from discarded oyster shells

Seawool^® yarn/fabric, patented by Creative Tech Textile, is made from fibers derived from discarded oyster shells and recycled plastic bottles.

The shape of Seawool’s fibers is inspired by the hollow, spiral structure of polar bear fur. This structure and the oyster shells’ properties allow the fibers to maintain thermal regulation, performing similarly to wool. In addition to being made from a powder created of discarded oyster shells, the yarn/fabric also contains recycled PET plastic bottles. Odor-resistant, moisture-wicking and UV-protective, Seawool is suitable for products such as clothing and blankets.

Smawarm^® is an animal-down alternative patented by Creative Tech Textile that was developed before Seawool. The insulation material features the same spiral fiber structure and is also made from discarded oyster shells.

The company produces 2,500 tons of Seawool annually, repurposing approximately 500 tons of oyster shells in Taiwan.