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Bamboo and Sorona® have become key fibers in WvG’s new generation of knits. Sorona®, a partially plant-based PTT developed by Covation Biomaterials, accounts for 37 percent renewable content. Combined with bamboo viscose, the result is a fabric that breathes, stretches, and lasts in ways that traditional polyester blends cannot match. What Is Sorona®? Sorona® is a PTT (polytrimethylene terephthalate) fiber derived partly from industrially fermented plant sugars. Unlike standard polyester (PET), which is entirely petroleum-based, Sorona® incorporates bio-based monomers that improve flexibility and softness. This molecular difference gives Sorona® its natural stretch recovery and smoother hand. In testing, Sorona® shows...

Cashmere and merino dominate the luxury knitwear market, but yak and camel fibers have long been used in high-quality textiles.  Both offer distinct advantages in warmth, durability, and drape, and both are recognized by mills as credible luxury fibers.  For anyone serious about fabrics, it is worth understanding how yak and camel compare to merino and cashmere. Yak Fiber Properties Yak fiber comes primarily from herds in Mongolia, Tibet, and parts of Central Asia.  The undercoat, collected during the spring molt, is what spinners use for fine yarns. According to HD Merino’s analysis, yak down measures between 16 and 20...

Luxury knitwear usually revolves around cashmere, merino, alpaca, or vicuña. Tanuki, also known as Asiatic raccoon or raccoon dog yarn, does not have the same profile but it has been spun by mills like Consinee for decades. It is a real, usable fiber with specific properties and it requires clear explanation for anyone serious about fabrics. Defining the Fiber The Asiatic raccoon dog (Nyctereutes procyonoides) grows a dense undercoat in cold months. This undercoat can be dehaired, scoured, and spun into yarn. Because staple length is short, it is usually blended with cashmere, wool, or silk for stability.  Consinee, one...

When rare animal fibers are discussed, names like qiviut, vicuña, and baby cashmere often appear. Arctic fox down sometimes enters the conversation as well, often referred to as “arctic fox qiviut.” Both are unusual, but they exist in different contexts. Arctic fox fiber remains mostly experimental, while baby cashmere is a defined, traceable category produced at scale by leading mills. At WvG, we work with baby cashmere because it offers consistency, measurable quality, and proven performance in knitwear. Arctic Fox Fiber: A Natural Rarity Arctic foxes develop a dense undercoat to survive extreme northern winters. This fine down can, in...