Special introductory price on this Polyester-2 U.S. Flag in MIL SPECS. This Flag is the same size and proportions as the nylon MIL SPEC Storm Flags but made of 100% spun polyester with 2x2 ply construction. This U.S. Flag has durability and strength. Looks like cotton, only much stronger. NOTE: Customers who have flown both the Nylon Storm Flag and this Poly-2 WindWarrior U.S. Flag have voted the Poly-2 WindWarrior best. We highly recommend this U.S Flag to customers who want the longest life out of their U.S. Flag.