Fiber Directory

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Darn Tough✕

Merino wool socks (blended with nylon for durability) made in Northfield, Vermont, with a lifetime guarantee.

Duckworth✕

Montana brand making US-made merino wool shirts, base layers, sweatshirts, jackets and socks from wool grown on the Helle family ranch and Rocky Mountain growers.

IAFIL✕

Spinner of natural-fiber yarns in cotton, silk, linen, cashmere and alpaca for knitting and weaving.

Isobaa✕

UK merino wool brand making tees, hoodies, base-layer tights, joggers, boxers, socks and beanies for running, outdoors and everyday wear; ships to the US.

TypeBrandBrandMillBrand
LocationNorthfield, Vermont, USUnited StatesMilan, ITUnited Kingdom
FibersMerinoMerinoCotton · Silk · Linen · Cashmere · AlpacaMerino
MakesSocksTops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, AccessoriesFabric & yarnTops & tees, Pants & skirts, Knitwear, Base layers, Underwear, Socks, Accessories
Services——Spinning—
Entry price$$ · Pair of socks $24.00$$$ · Base layer top $125—$$$ · Base layer top $106
Min. orderNot statedNot statedNot statedNot stated
CertifiedNone listedNone listedMasters of LinenNone listed
NaturalNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blends
Founded2004——2016