And now a bit of history about the retro style, that I found on the Unique Vintage website
'In the 1940’s, because of the war, there was a general moving away from fabulous dressing. The government asked the designers not to be wasteful, including using unnecessary amounts of fabric, materials and trimming. The bias cut, 1930’s silhouette slowly disappeared and was replaced with a new simplistic style. In the 40’s, attitudes about style and dress were becoming more and more casual. Dresses often had wide shoulder pads, a nipped in long waist and a full skirt that fell just below the knee. In 1947, Dior decreed skirts should rise only 12” or 15” off the ground with a nipped in waist and curved bust that he called the ”New Look”. . So the full skirt persisted in the 1950’s, just shorter this time, often at or above the knee.'
So I am very grateful to the 50's designers for not wasting material, for coming up with this simplistic but yet amazing style of dresses later on skirts that can be combined with T-shirts and not necessary blouses!