I've just had the pleasure of discovering that the Yanks have their own version of waxed cotton which they call waxed canvas or tin cloth!
https://www.youtube.com/watch?v=O55NmLg7fTw
There're loads of videos about tin cloth, especialy about tin pants used and loved by loggers.
Isn't it great to know that it's not just a British thing, and wither Dumbago when you want him!