Oyster shell-derived fibre ‘gains traction’ - sportstextiles: Lea SportsTextiles

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Oyster shell-derived fibre ‘gains traction’

06/06/2025
Oyster shell-derived fibre ‘gains traction’
For World Environment Day, today, Creative Tech Textile, based in Taiwan, has revealed details of its innovative Seawool yarn, which is partially made from discarded oyster shells. Dubbed the ‘emerald from the ocean’, Seawool generates around TWD$200 million (US$6.1 million) in annual revenue and is quickly gaining global traction, the company said. It currently produces 2,500 tonnes annually, repurposing approximately 500 tonnes of oyster shells.

Creative Tech Textile has developed a method to turn oyster shells into a functional powder, which is integrated into recycled polyester made from PET plastics. Seawool yarns are said to offer odour resistance, moisture wicking and UV protection. Their low thermal conductivity further gives them thermoregulating properties. 

“Our goal is to replace traditional fibres with more environmentally-friendly alternatives — facilitating true sustainability from the upstream end of the fashion industry supply chain,” commented Eddie Wang, founder and CEO of Creative Tech Textile. The Bluesign-certified manufacturer was founded in 2010 and is based in Tainan. 

Photo, courtesy of Creative Tech Textile, shows a Taiwanese oyster farmer.

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