Black Open knit Mock neck Long sleeves Straight maxi-length hem Detachable slip 55% silk, 45% cotton SKU: R2227783KS062001 Features a mock neck and long, slim-fitting sleeves. Proenza Schouler Black Silk Cotton Knit Dress New with Tags The Silk Cotton Mesh Knit Dress is crafted from silk and cotton to an A-line silhouette.