Shop Mens's at RalphLauren.com, the Official Site of Ralph Lauren. Rugby Crest Trouser Socks - Designed with an embroidered "Polo" crest, these essential trouser socks are crafted from an ultra-soft cotton blend and feature an allover variegated striped pattern. Ribbed cuffs. Embroidered "Polo" crest accents one side of each sock. 92% cotton. 6% polyester. 2% spandex. Machine washable. Imported.