Tailored pant suits became popular for women the the forties. This was because when they were needed in the workforce, they needed more protection. This was also a cause of Rosie the Riveter and her call to help for the need of woman in the workforce.
HIGH RESOLUTION COLOR, War time Utility fashion - Charlotte Fiell and Emmanuelle Dirix. [Character inspiration for the heroines of the Waves of Freedom series - "Quintessa Beaumont," "Mary Stirling," and "Lillian Avery.