These great sports socks are made with fine merino wool inside and mercerised cotton outside, perfect for wear during sport or exercise. A micro terry fine wool cushioned sole provides extra bounce but remains slim enough to fit inside a sports shoe. One size fits most. 67% Wool; 19% Mercerised Cotton; 12% Nylon; 2% Elastane. Wash on a warm cycle. May be tumble dried on warm. Do not bleach. Do not professionally dry clean. Do not iron.