White + Warren Cashmere Rugby Stripe Polo in Black,Taupe. - size S (also in L, M) White + Warren Cashmere Rugby Stripe Polo in Black,Taupe. - size S (also in L, M) 100% cashmere. Dry clean only. Hidden front partial button closure. Midweight soft knit fabric. WWAR-WK384. 21447. A well-known name among luxe lovers and cashmere cravers, White + Warren is the NYC based label that has been defining cold weather wear for the last 17 years. White + Warren eloquently manipulates knitwear taking it from functional to fashionable. Everything from tees to joggers, wraps to ponchos make up their arsenal.