Our United States of America / USA / American flags are made of 100% heavyweight SolarGuard nylon. Sewn with a premium quality extra-strength polyester thread. Seams are double-stitched with back-stitch reinforcement with four rows of lock stitching on the fly end. Embroidered white stars and sewn stripes, finished with a heavy white canvas heading and solid brass grommets. This flag was made in America to Government Design Specifications.