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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. | Polopiqué✕ Vertically integrated Portuguese textile group that spins, weaves, knits, finishes and sews mainly cotton, organic cotton and linen fabrics and garments for global fashion brands. | 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. | |
|---|---|---|---|---|
| Type | Brand | Manufacturer | Manufacturer | Brand |
| Location | Northfield, Vermont, US | Braga, PT | Santo Tirso, PT | United States |
| Fibers | Merino | Organic cotton · Merino | Cotton · Organic cotton · Linen | Merino |
| Makes | Socks | Socks | Fabric & yarn | Tops & tees, Shirts, Pants & skirts, Base layers, Outerwear, Socks, Accessories |
| Services | — | Knitting | Spinning, Weaving, Knitting, Dyeing, Cut & sew | — |
| Entry price | $$ · Pair of socks $24.00 | — | — | $$$ · Base layer top $125 |
| Min. order | Not stated | Not stated | Not stated | Not stated |
| Certified | None listed | GOTS, OEKO-TEX Standard 100, Responsible Wool Standard | GOTS, OEKO-TEX Standard 100 | None listed |
| Natural | Not 100%. Some blends | Not 100%. Some blends | Not 100%. Some blends | Not 100%. Some blends |
| Founded | 2004 | 1985 | — | — |