Endura-Nylon U.S. Flag for outdoor use. 2 1/2' x 4' Nylon. Our Endura-Nylon flags are crafted using aniline-dyed 100% heavyweight 200-denier nylon bunting. Endura-Nylon material is fast drying, treated to resist fading and flies in the slightest breeze. Finished with white poly-cotton header.