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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. | Ibex✕ Merino wool outdoor clothing — base layers, socks and jackets — founded in Vermont in 1997, now based in Boulder. | 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 | Manufacturer | Brand | Manufacturer |
| Location | Braga, PT | Burlington, US | Boulder, US | Tiruppur, IN |
| Fibers | Organic cotton · Merino | Cotton · Hemp · Wool | Merino | Organic cotton |
| Makes | Socks | Tops & tees | Base layers, Socks, Outerwear | Tops & tees, Fabric & yarn |
| Services | Knitting | Printing, Dyeing | — | 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 | B Corp | None listed | GOTS, Fair Trade |
| Natural | Not 100%. Some blends | 100% natural | Not 100%. Some blends | Not 100%. Some blends |
| Founded | 1985 | — | 1997 | 1969 |