A rollover mock neck, body-hugging silhouette, and luxe detailing lend this Ralph Lauren Black dress infinite degrees of eleganceHigh foldover polo neck, long sleeves, leather patch detailing at right shoulder, contrast ribbing at cuffs and hem, midi-length, rich olive wool-silk-cashmere blendForm-fittingTeam with lace-up ankle boots or classic pointed heels and an envelope-style shoulder bag