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| Minus33✕ Merino wool base layers, socks and hats from a fifth-generation New Hampshire woollen textile family business. | 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. | Icebreaker✕ Merino outdoor and base-layer clothing; some fabrics blend merino with nylon, lyocell or elastane. | Darn Tough✕ Merino wool socks (blended with nylon for durability) made in Northfield, Vermont, with a lifetime guarantee. | |
|---|---|---|---|---|
| Type | Brand | Manufacturer | Brand | Brand |
| Location | Ashland, New Hampshire, US | Braga, PT | Auckland, NZ | Northfield, Vermont, US |
| Fibers | Merino | Organic cotton · Merino | Merino | Merino |
| Makes | Base layers, Socks, Accessories | Socks | Base layers, Tops & tees, Underwear, Socks, Outerwear | Socks |
| Services | — | Knitting | — | — |
| Entry price | $$ · Base layer top $79.99 | — | $$ · Base layer top $89.45 | $$ · Pair of socks $24.00 |
| Min. order | Not stated | Not stated | Not stated | Not stated |
| Certified | None listed | GOTS, OEKO-TEX Standard 100, Responsible Wool Standard | ZQ Merino | None listed |
| Natural | Not 100%. Some blends | Not 100%. Some blends | Not 100%. Some blends | Not 100%. Some blends |
| Founded | 2002 | 1985 | — | 2004 |