Cos Size medium New with tags Viscose. Polyamide. Elastane. White crew neck, sleeveless, mid thigh to knee length knit dress. Very fine knit. Official description from COS: This COS dress is rib-knitted from cotton with a form-fitting top half and flared mini skirt. It features a dropped-waist and regular fit. Approximate measurements: Pit to pit: 14.5” Waist: 14.5” Length: 36”