Windless, Swooper, Flutter, Feather, Banner Flags SALE YELLOW ON RED Flags are super-knitted outdoor quality polyester with exacting accuracy in brilliant colors. Reinforced sleeve and double stitching on flying edges for durabilty. Flag measures 11.5 x 2.5 feet. These flags are designed to be used with the windless swooper poles that curve at 90 degree at the top. These unique swooper flags show the full advertisement with no wind at all.