We carry two types of flags; Swooper Flutter and Swooper Windless (require different flagpole types). Our Swooper Flutter flags have a partial sleeve. The top 12 inches of the flag are free to flutter in the wind creating movement to attract attention. Our Swooper Windless flags have a full sleeve. The full sleeve allows the flag to remain open, constantly displaying the message. Flags are made of a heavy duty knitted polyester material and are printed with 75% to 90% bleed through on the reverse side; this means the reverse side has a mirrored image.