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Norwegian wool brand making merino wool base layers, thermal underwear, fleece-wool layers and beanies, using New Zealand merino knitted in its own Estonian facility.

Hypoallergenic organic cotton underwear, tees and loungewear for people with allergies, with latex- and spandex-free lines.

Irish linen weaver since 1912, operating from what it calls Ireland's oldest remaining linen mill, with its own dyeing and finishing works.

Merino wool socks (blended with nylon for durability) made in Northfield, Vermont, with a lifetime guarantee.