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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. | Ibex✕ Merino wool outdoor clothing — base layers, socks and jackets — founded in Vermont in 1997, now based in Boulder. | 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. | Armstrong Knitting Mills✕ Family-owned, vertically integrated Tiruppur mill and garment maker, an early promoter of organic cotton in India, supplying organic cotton jersey to brands. | |
|---|---|---|---|---|
| Type | Manufacturer | Brand | Manufacturer | Manufacturer |
| Location | Braga, PT | Boulder, US | Mount Airy, US | Tiruppur, IN |
| Fibers | Organic cotton · Merino | Merino | Merino · Wool | Organic cotton |
| Makes | Socks | Base layers, Socks, Outerwear | Socks, Accessories | Tops & tees, Fabric & yarn |
| Services | Knitting | — | Knitting, Private label | Spinning, Knitting |
| Entry price | — | $$$ · Base layer top $135 | — | — |
| Min. order | Not stated | Not stated | Not stated | Not stated |
| Certified | GOTS, OEKO-TEX Standard 100, Responsible Wool Standard | None listed | Responsible Wool Standard | GOTS, Fair Trade |
| Natural | Not 100%. Some blends | Not 100%. Some blends | Not 100%. Some blends | Not 100%. Some blends |
| Founded | 1985 | 1997 | 1993 | 1969 |