Fiber Directory

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Darn Tough✕

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

TS Designs✕

Burlington, North Carolina B Corp t-shirt maker using only natural fibers (US-grown cotton, hemp, wool), offering eco printing and garment dyeing for brands.

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.

TypeBrandManufacturerBrandBrand
LocationNorthfield, Vermont, USBurlington, USBoulder, USUnited States
FibersMerinoCotton · Hemp · WoolMerinoMerino
MakesSocksTops & teesBase layers, Socks, OuterwearTops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, Accessories
Services—Printing, Dyeing——
Entry price$$ · Pair of socks $24.00—$$$ · Base layer top $135$$$ · Base layer top $125
Min. orderNot statedNot statedNot statedNot stated
CertifiedNone listedB CorpNone listedNone listed
NaturalNot 100%. Some blends100% naturalNot 100%. Some blendsNot 100%. Some blends
Founded2004—1997—