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.

Aclima✕

Norwegian wool brand making merino wool base layers, thermal underwear, fleece-wool layers and beanies, using New Zealand merino knitted in its own Estonian facility.

TypeBrandMillMillBrand
LocationNorthfield, Vermont, USMilan, ITStornoway, Isle of Lewis, GBDrammen, NO
FibersMerinoCotton · Silk · Linen · Cashmere · AlpacaWoolMerino · Wool
MakesSocksFabric & yarnFabric & yarnBase layers, Underwear, Tops & tees, Accessories, Baby & kids
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—19061939