Recognized as the most durable flag product, the Poly-Max Military Flags are skillfully crafted of 1-ply polyester bunting. The unique open weave construction gives wind resistance, increasing the life span of the flag. It will resist wear to wind, dirt, and moisture and is ideal for industrial, institutional, commercial, or residential applications. They are the most durable, longest lasting flags available. Made in the U.S.A.!