G-Spec American Flags are the line of flags that the US Government has specified. These American flags are made in the USA in accordance with the U.S. Code, Title 4 from 2-ply, mercerized cotton bunting. Each US flag is made with lock stitched seams and color matched thread. These United States flags heavy canvas duck headings constructed to government standards and solid brass, toothed grommets. Known as the Post flag, this 10' x 19' American flag is flown on all US Military bases.