These items are made with a combination American flag and First Navy Jack image that I created myself. I made the image specifically for this purpose so that it prints very well.
See this American flag history page for more information about the U.S. flag. You might also be interested in my other CafePress flag shops:
13-Star Betsy Ross American Flag,
First Navy Jack: Dont Tread on Me,
Gadsden: Dont Tread on Me,
Betsy Ross Flag / Don't Tread on Me,
9.11.01: We Will Not Forget,
United We Stand.
Yours in liberty,
P.S. If you're looking for an American flag or First Navy Jack flag, check out my friend Josef and his business, Flagline.