I have a friend who is heavily into buying American made products. He will go to great lengths and often pay more for American made. I think finding clothes is toughest for him, I think he orders from some American made catalog. A little of that behavior is rubbing off on me too.
Even the companies that profess to sell American made products, apparently don't always. I thought Land's End clothes were American made. Check this out,
http://www.law360.com/articles/591714/lands-end-the-latest-retailer-to-face-made-in-usa-suit