Fiber Directory

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Darn Tough✕

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

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.

Isobaa✕

UK merino wool brand making tees, hoodies, base-layer tights, joggers, boxers, socks and beanies for running, outdoors and everyday wear; ships to the US.

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, USBraga, PTUnited KingdomUnited States
FibersMerinoOrganic cotton · MerinoMerinoMerino
MakesSocksSocksTops & tees, Pants & skirts, Knitwear, Base layers, Underwear, Socks, AccessoriesTops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, Accessories
Services—Knitting——
Entry price$$ · Pair of socks $24.00—$$$ · Base layer top $106$$$ · Base layer top $125
Min. orderNot statedNot statedNot statedNot stated
CertifiedNone listedGOTS, OEKO-TEX Standard 100, Responsible Wool StandardNone listedNone listed
NaturalNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blendsNot 100%. Some blends
Founded200419852016—