Shop Unisex's at RalphLauren.com, the Official Site of Ralph Lauren. Rugby Crew Sock 2-Pack - This essential pack of cute cotton-blend crew socks features two distinct preppy patterns and our signature embroidered pony. Ribbed cuffs. Our signature embroidered pony accents one side of each sock. Cotton. Nylon. Spandex. Machine washable. Imported.