Vollebak continues its reign as one of the most forward-thinking brands in performance apparel with the Lab-Grown Sweater— a groundbreaking knit built from an entirely new type of biomaterial. Forget cotton, wool, or synthetics — this sweater was grown in a lab, designed through molecular engineering that replicates nature’s strongest fibers while charting a path toward the future of sustainable fashion.

Created using Brewed Protein™, a molecularly engineered fiber developed in Japan by Spiber, the sweater combines science and style in true Vollebak fashion. By selecting DNA sequences from animals like sheep and squid, then programming microbes to “brew” a protein polymer, Vollebak has literally grown the building blocks of the garment before spinning them into yarn. The result is a material that feels luxuriously soft — like a hybrid between cashmere, silk, and Merino wool — yet remains strong, breathable, and thermoregulating.

Constructed in the UK, the sweater blends Merino wool and Brewed Protein™ fibers to create a mid-weight knit that’s both futuristic and functional. Its fully reversible honeycomb texture showcases the beauty of engineered design while delivering all-day comfort and warmth. Like most Vollebak pieces, the Lab-Grown Sweater isn’t just clothing — it’s wearable innovation, bridging biotechnology and performance gear.

At $595, this piece represents more than luxury — it’s a glimpse into the next evolution of apparel, where science and sustainability merge to redefine what we wear and how it’s created.

In other apparel news, check out the Wrangler x Filson Collection.