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Merino wool base layers, socks and hats from a fifth-generation New Hampshire woollen textile family business.

Hypoallergenic organic cotton underwear, tees and loungewear for people with allergies, with latex- and spandex-free lines.

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.

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.