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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.

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

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

London womenswear label known for signature silk collections, making resortwear, sleepwear and staples in silk, linen and wool.