Annin Tough-Tex® is the strongest, most durable all-weather flag. Designed for institutional and commercial flag displays, nothing beats the performance of an Annin Tough-Tex® flag. Made from an exclusive, open-weave 2-ply spun polyester material, this time-tested standard has been America’s best for over 30 years. It is the best material for larger flags, ideal for daily and long-term display. The unique open-weave reduces fabric stress by letting air flow through making it the longest lasting flag available.