Goldwin and Spiber Jointly announced their latest product named “The Sweater” from microbial fermentation. The Sweater is the world’s first-ever bio-fermented knitted commercialized product.
Goldwin is a renowned Japanese International technical apparel brand, and Spiber is well-known as a biomaterial innovator.
The breakthrough innovative knitted garment has been made with Brewed Proteinâ„¢, a biopolymer whose plant-based microbial fermentation process. The Sweater is a milestone in Goldwin and Spiber’s shared mission to reduce the fashion industry’s impact on the environment by replacing traditional, petrochemical-based materials and production methods with innovative, biobased solutions.

Fast fashion is among the leading contributors to climate change and one of the most ravenous industrial consumers of natural resources. According to researchers’ most recent estimates, it accounts for 8 percent of total greenhouse gas emissions globally and generated 1.
2 billion tons of greenhouse gas emissions in 2016. Thus, such innovative products could be beneficial for the market and environment.
On December 25, 2020, The Sweater will be shipped to those in the 11 countries who purchased it, including Japan, United States, Germany, Denmark, France, Italy, Portugal, Spain, United Kingdom, Sweden, and the Netherlands.
The characteristics of the innovative product are
– Designed to emulate a traditional ski sweater, with a low gauge knit and twisted yarn that delivers an ultra-soft and comfortable feel.
– 30-percent Brewed Proteinâ„¢, 70-percent wool
– Available in unisex sizes S, M, L


