White + Warren Cashmere Wide Rib Trim Vneck Top in Black. Size L. Also in M, S, XS. White + Warren Cashmere Wide Rib Trim Vneck Top in Black. Size M, S, XS. 100% Cashmere. Dry clean only. Pull-on styling. Ribbed neckline, cuffs and hem. Lightweight knit fabric. WWAR-WK387. 21371. 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.