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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.

Lithuanian maker of pre-washed linen clothing and home textiles focused on private-label production for small and mid-size stores and chains.

American basics label known for Pima tees in US-grown Supima cotton, plus slub and hemp tees; some styles knit and sewn at its own Pennsylvania mill.

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