I was quite fascinated by the suit trousers of the early 1940s. Generally flat-fronted or with single pleats, they come with a high waist with a 3 inch waistband.
1940s Fashion - Men lose their Pants to the Women - Glamour Daze
Vintage 1940s Cotton Jacket and Pants Suit - Raleigh Vintage
1940s skirt suit - rust
1940s Womens Jacket - Ireland
Zoot Suit Trousers: 1940s Men's Fashion That Trend Popular During the War Years ~ Vintage Everyday
1940s & 50s pant suits & skirt suits
1940s rosie the riveter overalls vintage sewing pattern reproduction – Lady Marlowe
1940s & 50s reproduction vintage clothing
Single Pleated Flat Trousers Of 1940's
When Pantsuits Were “Slacks Suits:” 1938, 1940, 1948