The New Look fashion designer was Christian Dior, a French fashion designer who revolutionized women's fashion in the 1940s and 1950s. He is credited with introducing the A-line silhouette, which featured a cinched waist and full skirt, and popularizing the use of fabrics such as tulle and organza. His designs were characterized by an emphasis on femininity and luxury, and he is considered one of the most influential designers of the 20th century.