Enza Costa Silk Cashmere Rib Slim Turtleneck in Black. - size L (also in M, S) Enza Costa Silk Cashmere Rib Slim Turtleneck in Black. - size L (also in M, S) 76% tencel 10% silk 10% cashmere 4% spandex. Made in USA. Hand wash. Turtleneck styling. Lightweight ribbed jersey fabric. ENZA-WS1133. SCR3585. Designed to transform everyday basics into luxury essentials, Enza Costa's unique brand of minimalist, modern clothing is crafted with featherweight blends of sumptuous supima cotton, cashmere and silk. Shop the latest in fashion from Enza Costa