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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.

Historic Maine woolen mill making mule-spun wool knitting yarns from mostly East Coast fleece.

Arequipa knitwear and apparel maker producing alpaca and organic cotton sweaters, coats and accessories for brands and designers; also runs its own label, Anntarah.

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