Fiber Directory

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Darn Tough✕

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

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.

Mexthon✕

WFTO-member Fair Trade knitwear maker in Lima producing alpaca, cotton and merino knits for designer brands under private label and its own MKM label.

Ibex✕

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

TypeBrandBrandManufacturerBrand
LocationNorthfield, Vermont, USUnited StatesLima, PEBoulder, US
FibersMerinoMerinoAlpaca · Cotton · MerinoMerino
MakesSocksTops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, AccessoriesKnitwearBase layers, Socks, Outerwear
Services——Knitting, Private label—
Entry price$$ · Pair of socks $24.00$$$ · Base layer top $125—$$$ · Base layer top $135
Min. orderNot statedNot statedNot statedNot stated
CertifiedNone listedNone listedFair TradeNone listed
NaturalNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blends
Founded2004——1997