This range uses self-striping yarns sourced from Germany & Denmark (processed in Italy, some in Turkey) to OEKO-TEX standards. Features 80% wool/20% Nylon machine washable yarn. These are a very durable yarn due to the nylon content, but with all the warmth of the wool. The style of this sock is a mock rib design which gives the sock a loose cuff & suits the sensory sensitive & diabetic with a smooth fabric and no ridges inside of fabric. Machine washable. All made to our authentic traditional, handcrafted standards in Clunes, Australia.