These are generally considered short term promotional signs. They take more sun and wind abuse than any other sign product on the market. To combat the elements we only sell the best, premium flag fabrics, UV Inks, and our poles are premium fiberglass poles for optimal flexibility to increase longevity. There are no guarantees on feather flags, but if taken care of, they can last for years. While they can handle normal wind, high winds will shred the material quickly and void the warranty. Use common sense. If you see higher winds in the forecast, take them inside until things calm down. Wind is the biggest enemy.