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Sock maker near Braga, Portugal, producing about 3.5 million pairs a year in organic cotton and merino for department stores, chains and brands such as Asket.

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

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.

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