This is a 6'x10' polyester-2 U.S. Flag. We offer this U.S. Flag because 6'x10' is such a great size.
Here is our opinion on polyester-2 vs. nylon U.S. Flag material. Polyester-2 will last the longest. Nylon will look the brightest. So it depends on what you want. Actually we recommend you do like some of our clients and purchase a polyester-2 6'x10' U.S. Flag for winter and a nylon 6'x10' U.S. Flag for summer. If you re-sew the hems you could get a couple of years out of one poly-2 and one nylon 6'x10' U.S. Flags easy.