All United States flags made of 100% heavyweight SolarGuard nylon. Sewn with a premium quality extra-strength polyester thread. Seams are double-stitched with back-stitch reinforcement. Six rows of lock stitching on fly end. Embroidered white stars and sewn Stripes, finished with a nylon rope sewn into the heading with galvanized metal thimbles. Flags are Made in the U.S.A. to Government Design Specifications.