During World War Two, silk was no longer available for such crucial applications as enhancing female underpinnings, and nylon was rare. Thus the wide use of a tan liquid swab-on product called "leg makeup." The gals even used a special pencil to draw straight "seams" up the backs of their legs. It was something of a treat for us young lads to watch some of 'em twist and squirm to do the job -- which of course took lots longer than pulling real hose on, fastening the tops to garters, and straightening the seams.
"Spray-on" doesn't strike me as much of an improvement over nylon -- but the "panty hose" part has definite possibilities. I get a chuckle by just imagining the shrieks and facial contortions when that icy spray cloud strikes the more sensitive areas that today's panty hose cover but 1940s hose didn't.
