Sailors used to say that the Sailor Stripes, or marinière, made it easier to see men who had fallen into the sea. Whether you're a sailor or a landlubber, this classic look never goes out of style. Black and green stripes on softest bamboo blend for men for extra breathability and anti-bacterial/ antimicrobial qualities, these socks are perfect for all day wear. The moisture wicking properties of bamboo ensure maximum comfort for your feet and skin. Made from sustainable bamboo fiber, these socks are certified organic and free of harmful chemicals! OCIA and OEK-TEX certified.78% rayon from bamboo, 20% nylon, 2% spandex. Fits approximate men's shoe sizes 7–12.5, Women's shoe size 9-14.