Made in U.S.A. Don't Tread On Me Patriotic Gadsden Flag Shirt 100% Made in the U.S.A. Introducing our new "Asphalt Gray" Don't Tread On Me Gadsden Flag T Shirt. A symbolic and historic element of our American past, this shirt makes a bold and loud statement! On a made in America tshirt from American Apparel, this shirt has a nice fit with quality cotton. As always, made and printed here at home, designed in Cleveland.