United Arrows Ltd. will release two special-order knitwear products made with Brewed Protein™ fiber on February 9, 2024 as part of their “SARROWS” sustainability initiative. The development of these products was a collaboration between three companies, including Yamagata Prefecture-based knitwear manufacturer Okuyama Meriyasu Ltd., known for their “BATONER” knitwear brand.

BATONER incorporated the yarn developed by Spiber into their signature crew-neck knit. The quality of the material and the precision of the weave endow these products with rich expressivity and a high level of comfort.

Details can be found here (Japanese only; products available for sale within Japan only).