Fiber Directory

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Darn Tough✕

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

ALUMO✕

Swiss shirting-fabric maker using extra-long-staple Supima and Sea Island cotton, plus cashmere and linen blends, woven at partner mills.

Ibex✕

Merino wool outdoor clothing — base layers, socks and jackets — founded in Vermont in 1997, now based in Boulder.

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.

TypeBrandMillBrandBrand
LocationNorthfield, Vermont, USHerisau, CHBoulder, USUnited States
FibersMerinoCotton · Organic cotton · Linen · CashmereMerinoMerino
MakesSocksFabric & yarnBase layers, Socks, OuterwearTops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, Accessories
Services—Weaving——
Entry price$$ · Pair of socks $24.00—$$$ · Base layer top $135$$$ · Base layer top $125
Min. orderNot statedNot statedNot statedNot stated
CertifiedNone listedGOTSNone listedNone listed
NaturalNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blends
Founded200419181997—