100% cashmere. Hand wash cold. Side seam slits. WWAR-WK103. 16793. 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.