Fiber Directory

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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.

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.

ALUMO✕

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

Nester Hosiery✕

Mount Airy, North Carolina wool sock mill that knits merino socks for private-label clients such as REI and L.L.Bean, makes licensed lines, and owns Farm to Feet; some programs use synthetic yarns.

TypeManufacturerManufacturerMillManufacturer
LocationBraga, PTBurlington, USHerisau, CHMount Airy, US
FibersOrganic cotton · MerinoCotton · Hemp · WoolCotton · Organic cotton · Linen · CashmereMerino · Wool
MakesSocksTops & teesFabric & yarnSocks, Accessories
ServicesKnittingPrinting, DyeingWeavingKnitting, Private label
Entry price————
Min. orderNot statedNot statedNot statedNot stated
CertifiedGOTS, OEKO-TEX Standard 100, Responsible Wool StandardB CorpGOTSResponsible Wool Standard
NaturalNot 100%. Some blends100% naturalNot 100%. Some blendsNot 100%. Some blends
Founded1985—19181993