Our superknit printed polyester US flags are very attractive and durable, and are great value. They offer the durability of nylon at a fraction of the price. Do not compare to the cheaper printed polyester US flags offered by our competitors, these are far inferior products. In addition to the high tech durable superknit polyester fabric, we use stronger heading fabric and sturdy real brass grommets. not steel which will rust. These flags are made outside of the US exclusively for Online Stores Inc.