"Oh... this old thing?"
As modeled by Loretta Young. (She was a devout Catholic who went to daily Mass - with my Aunt and Uncle. I know!)
"...Clothes to be modest need not only to cover the body but also not to cling too closely to the body. Now it is true that much feminine clothing today clings closer than do some trousers, but trousers can be made to cling closer, in fact generally they do, so the tight fit of such clothing gives us not less grounds for concern than does exposure of the body. So the immodesty of men's trousers on women is an aspect of the problem which is not to be left out of an over-all judgment upon them, even if it is not to be artificially exaggerated either." - Cardinal SiriAnother example here. What?