Our USA Flags are made from 100% 2-ply, Spun Woven Polyester fabric to resist high winds. Annin & Company, flag makers since 1847, uses this specially designed open-weave fabric to improve flying ability while reducing fabric stress for long-lasting performance. These Flags are ideal for larger flags flown daily and high wind areas. Backed by the oldest and largest flag manufacturer in the USA. Your satisfaction is guaranteed, period. Usually ships within 7 - 10 business days.