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| 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. | Bartlettyarns✕ Historic Maine woolen mill making mule-spun wool knitting yarns from mostly East Coast fleece. | 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. | |
|---|---|---|---|
| Type | Manufacturer | Mill | Manufacturer |
| Location | Burlington, US | Harmony, US | Braga, PT |
| Fibers | Cotton · Hemp · Wool | Wool | Organic cotton · Merino |
| Makes | Tops & tees | Fabric & yarn | Socks |
| Services | Printing, Dyeing | Spinning, Weaving | Knitting |
| Entry price | — | — | — |
| Min. order | Not stated | Not stated | Not stated |
| Certified | B Corp | None listed | GOTS, OEKO-TEX Standard 100, Responsible Wool Standard |
| Natural | 100% natural | Not 100%. Some blends | Not 100%. Some blends |
| Founded | — | 1821 | 1985 |