This 16 in. x 24 in. United States 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. Our flags are made in the U. S. A. to Government Design Specifications.