New Zealand textile technology firm Nuyarn has added Falke, Courier, Radio and Kathmandu to its brand roster for performance wool socks, extending a partner base that already includes hunting and outdoor labels KUIU and Trew.

The new programmes cover endurance and outdoor applications — running, cycling, hiking and hunting — and knit socks from both of the company's yarn platforms: Nuyarn Merino and Strong Wool. The deals widen the technology's footprint across performance footwear, one of the most durability-critical categories in the wool knitwear supply chain.

The company attributes the adoption to buyer demand for lightweight, durable and fast-drying natural fibre constructions, a shift that has pushed mills and sock makers toward alternatives to conventional ring-spun merino.

Nuyarn's core process is a twist-free spinning method. Instead of tightly twisting fibres together, the technology drafts superfine merino wool around a high-performance filament, producing what the company describes as a loftier and more resilient yarn structure that preserves more of wool's natural performance characteristics.

The second platform, Strong Wool, targets a different point in the fibre supply chain. It processes coarser wool grades traditionally routed to interior textiles into yarns the company says are suitable for performance apparel and accessories. According to Nuyarn, the technology lets these stronger fibres deliver increased abrasion resistance while keeping the comfort, moisture management and thermal properties required for active end uses — effectively opening a higher-value outlet for a wool grade that apparel buyers have largely passed over.

Claimed performance data

Nuyarn says testing shows its yarns achieve up to 8.8 times greater abrasion resistance than conventional merino constructions and dry up to five times faster. The company also claims its yarn structures provide 35% more loft and aeration, supporting improved thermoregulation across changing environmental conditions. These are supplier-reported figures; brands specifying the yarn will want to validate them against their own wear-test protocols before committing sock programmes to the platform.

"The objective was never just to improve wool; it was to unlock the performance potential already present within the fibre," said Andy Wynne, CEO of Nuyarn.

"We are bringing a level of durability and thermoregulation to the sock market that simply hasn't been possible with traditional yarn structures."

Compliance position

On certification, the platform can incorporate Responsible Wool Standard (RWS)-certified merino, and Nuyarn holds Oeko-Tex Standard 100 accreditation. For brands sourcing to animal-welfare claims, RWS traceability through the spinner is available; Oeko-Tex covers harmful-substance testing of the finished yarn. Neither equates to full chain-of-custody certification of the sock programme itself, so buyers making on-product claims will need to confirm scope at the garment level.

The company positions the technology platform as a way to let natural fibres perform with less restriction than in conventionally spun yarns, with the focus on lower weight, improved moisture management and greater long-term durability.

For sock brands and their knitting mills, the news is a sourcing decision rather than a fibre story: whether to qualify a twist-free merino platform that promises outsized durability claims — and, with Strong Wool, access to a cheaper coarser wool grade — against the certification and validation work that switch requires.