Fiber Directory

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Ibex✕

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

IAFIL✕

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

Harvest & Mill✕

Organic cotton basics grown, milled and sewn in the USA, made with family-owned factories near its Berkeley studio.

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
LocationBoulder, USMilan, ITBerkeley, USUnited States
FibersMerinoCotton · Silk · Linen · Cashmere · AlpacaOrganic cottonMerino
MakesBase layers, Socks, OuterwearFabric & yarnTops & tees, Shirts, Pants & skirts, SocksTops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, Accessories
Services—Spinning——
Entry price$$$ · Base layer top $135—$$ · Basic tee $54.00$$$ · Base layer top $125
Min. orderNot statedNot statedNot statedNot stated
CertifiedNone listedMasters of LinenNone listedNone listed
NaturalNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blends
Founded1997—2012—