The A-line is a garment shape that fits closely at the top (shoulders, bust or waist) and widens smoothly toward the hem, tracing the outline of a capital letter A. The term was introduced by couturier Christian Dior in his Spring 1955 collection as a development of his New Look. The A-line is versatile and remarkably flattering: it skims the hips, adds lightness and suits almost every body type. It is used in dresses, skirts and coats. Thanks to its balance between a restrained top and a free hem, the A-line remains one of the most classic and popular cuts in the history of fashion.