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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.

Family-owned Danish label making maritime-inspired unisex sailor sweaters and knitwear in pure new wool and organic cotton.

Mumbai women's cooperative and fair trade private-label apparel maker that cuts, sews and develops garments, mostly in cotton with some silk, for fair trade and mainstream brands.

Mount Airy, North Carolina wool sock mill that knits merino socks for private-label clients such as REI and L.L.Bean, makes licensed lines, and owns Farm to Feet; some programs use synthetic yarns.