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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.

British farm-based brand making mohair socks, bedsocks, scarves and mittens from its own Angora goats, knitted in the UK.

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.

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