Flags have to endure quite a difficult life. They fly in extreme conditions, wind, cold, sun exposure and temperature fluctuations all play a part in the lifespan of a flag. The length of time our flags will last will depend heavily on the environment in which it's flown, the material it is made of and the length of time it spends flying. In parts of the United States, it can get extremely cold and windy and this can cause deterioration. Our nylon U.S and State flags will last about two seasons but could easily last longer if weather conditions remain mild. Taking down your flag in severe weather will also contribute to a longer lifespan. Custom polyknit flags will last about one season and are not meant to be flown year round. If you do wish to fly your flag year round, we recommend you purchase a few at a time. You will have all the flags you need to fly 24/7/365 as well as get some great savings with our volume discounts!