Fiber Directory

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Darn Tough✕

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

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.

Fiorima✕

Sock maker near Braga, Portugal, producing about 3.5 million pairs a year in organic cotton and merino for department stores, chains and brands such as Asket.

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.

TypeBrandManufacturerManufacturerBrand
LocationNorthfield, Vermont, USLima, PEBraga, PTUnited States
FibersMerinoAlpaca · Cotton · MerinoOrganic cotton · MerinoMerino
MakesSocksKnitwearSocksTops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, Accessories
Services—Knitting, Private labelKnitting—
Entry price$$ · Pair of socks $24.00——$$$ · Base layer top $125
Min. orderNot statedNot statedNot statedNot stated
CertifiedNone listedFair TradeGOTS, OEKO-TEX Standard 100, Responsible Wool StandardNone listed
NaturalNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blends
Founded2004—1985—