Chile Flag 3x5 Brand NEW 3ft x 5ft Pride Banner by Flagline. Save 71 Off!. $4.98. 3' x 5' Polyester Flag. Flagline.com's standard flags of UN Nations are constructed with high quality, Ultra-Knit 100% Polyester. These flags also have a cotton heading and brass grommets. They feature accurate, colorful and durable 3x5' reproductions of the various countries' flags.