Our polyester American flags are made from polyester and are designed for longer life in high wind areas. Made from 2 ply, spun woven polyester for longer wear and the open weave reduces fabric stress. Provided with a ONE YEAR COLORFAST GUARANTEE. American flags features: Large, embroidered stars in sizes through 12′ x 18′ (Larger American flags have appliquéd stars). Hand fitted, double needle seams with back-stitch reinforcement. Two rows of stitching on top and bottom hems. Four rows of lock stitching with back stitch reinforcement on the fly end hem (six or more on larger flags).