An A-line dress is a dress that is narrow in the chest area and evenly expands downward, resembling the shape of the letter "A". The term "A-line" is used to describe a dress, skirt, or coat with a triangular silhouette, narrow and fitted at the top and widening out from the bust or waist in a straight line to the hem). The term was first used by the French couture designer Christian Dior as the label for his collection of spring 1955). A-line dresses are designed to emphasize a narrow waist, wider hips, and the bust line. The style of the A-line dress has two versions, one is fitted from the shoulders to the hips and then widening to the hem, and the other is widening from the shoulders to the hem, ignoring the waist and hips. A-line dresses are often used to describe a popular style of wedding dress, which is fitted above and around the hips but flares gently to the hem, giving a streamlined and quite slim look).