Maxi blue COS dress, worn once - a bit of stretch to it. Size M This maxi jersey dress is designed for a close fit through the waist and features a fluted hem for a flattering A-line silhouette. It is finished with a ribbed crew neck, wide short sleeves, exposed central seam and bold blue hue. 68% Cotton, 24% Polyamide (Nylon), 8% Elastane