German biotechnology firm AMSilk, known for producing advanced materials from spider silk proteins, has launched a new line of denim fabrics in collaboration with Italian textile mill Pure Denim. The partnership introduces high-performance fabrics combining traditional cotton with lab-grown spider silk, aimed at the luxury denim market.
The first fabric is an 11.2-ounce denim made of 67 percent cotton and 33 percent spider silk, offering improved softness, elasticity, and durability. The second, heavier 12-ounce option contains 59 percent cotton and 41 percent spider silk, designed for premium garments that require strength and resilience without sacrificing comfort.
AMSilk’s move highlights the rising role of biotech fibers in fashion. Spider silk is valued for its tensile strength, lightweight feel, and natural elasticity, providing a sustainable alternative to conventional fibers. The collaboration demonstrates how bioengineered materials are moving from lab research into commercial, high-end textile applications.
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The company has also expanded its production capabilities through partnerships with firms such as Ajinomoto Foods Europe and 21st.BIO, enabling larger-scale manufacturing of spider silk proteins. By combining biotechnology innovation with Italian textile craftsmanship, AMSilk and Pure Denim are positioning spider silk as a next-generation material for luxury apparel.
The introduction of these fabrics underscores broader industry trends toward sustainable, high-performance, and premium materials, offering designers and brands a new avenue to innovate while meeting consumer demand for eco-conscious fashion.
