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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.

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

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

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