Which designer is most famously associated with the slim look in the 1950s?

The designer most famously associated with the slim look in the 1950s is Coco Chanel. During this era, Chanel made a significant impact on women's fashion by promoting a more streamlined and elegant silhouette, characterized by the "Chanel suit" which often included a fitted blazer and a structured pencil skirt. Her designs emphasized simplicity and sophistication, contrasting with the more voluminous styles of earlier decades.

While other designers like Christian Dior introduced the "New Look," which featured a cinched waist and full skirts, Chanel's approach was unique in its focus on creating garments that were both stylish and practical, thus appealing to the modern woman of the 1950s. Chanel's influence extended beyond just clothing; she revolutionized how women perceived themselves in fashion, emphasizing comfort along with elegance.

Dior, Yves Saint Laurent, and Valentino also contributed significantly to fashion trends during this period but are more closely associated with different styles and concepts, rather than the slim, tailored look that defined Chanel's work at the time.