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Norwegian knitwear house making women's sweaters, cardigans and dresses in its Ytre Arna factory from merino wool, silk and alpaca.

Jermyn Street shirtmaker making luxury men's shirts by hand in its Gloucester workshop from Swiss and Sea Island cottons, plus linen, cashmere and silk pieces.

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.