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.

ALUMO✕

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

Gloverall✕

British outerwear brand famous for the duffle coat, making wool-rich duffles, peacoats and overcoats in England, including Harris Tweed styles.

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, USHerisau, CHUnited KingdomUnited States
FibersMerinoCotton · Organic cotton · Linen · CashmereWool · CottonMerino
MakesBase layers, Socks, OuterwearFabric & yarnOuterwear, KnitwearTops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, Accessories
Services—Weaving——
Entry price$$$ · Base layer top $135—$$$ · Jacket $562$$$ · 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
Founded199719181951—