The science of what you were taught corresponds to some dialogue I recall from an old Western movie. (remonline.com)
They were considered as being only a man's attire as they were the only ones who were seen to wear these jackets, be it ordinary men or western movie stars. (factoryextreme.com)
Apparently a lot of Western movies were filmed there at one time, because of the similarity with the American west. (theexpeditioner.com)