Polyester Wisconsin flag (3 ft. x 5 ft.) Our flags are made from a special polyester fabric to ensure quality. We only use 100% Never Rust Brass Grommets in our 3 x 5 foot flags. The hoist and fly ends of each flag are reinforced to extend its serviceable life. Each flag is shipped to you in an individual poly bag. All of the colors used to manufacture our flags are fade resistant to direct sunlight.