US and POW MIA Lapel Pin by US Flag Store. $1.59. Low Cost Shipping Available!. Approx 3/4" x 1/2". Baked Enamel Finish. Gold Metal Lacquered Design and Clutch Pin. Double Flag Lapel Pin (USA & POW/MIA). The US and POW/MIA Flag Lapel Pin features a 50-star American Flag and a POW/MIA Flag. This patriotic emblem shows support of the United States and also of POW/MIAs.