Fiber Directory

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Darn Tough✕

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

IAFIL✕

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

Kenneth Mackenzie✕

Independent Harris Tweed mill in Stornoway, opened in 1906, selling handwoven tweed by the length.

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.

TypeBrandMillMillBrand
LocationNorthfield, Vermont, USMilan, ITStornoway, Isle of Lewis, GBUnited States
FibersMerinoCotton · Silk · Linen · Cashmere · AlpacaWoolMerino
MakesSocksFabric & yarnFabric & yarnTops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, Accessories
Services—SpinningWeaving—
Min. orderNot statedNot statedNot statedNot stated
CertifiedNone listedMasters of LinenNone listedNone listed
NaturalNot 100%. Some blendsNot 100%. Some blends100% naturalNot 100%. Some blends
Founded2004—1906—