Go with durable, colorful and promotional with this 2.5' x 4' promotional polyester single reverse flag. These are an economical way to advertise large promotions, giveaways and events. 100 denier polyester is an economical material that's used primarily as a short-term outdoor substitution or as an indoor flag. Please be aware that the flag is not designed to withstand significant outdoor elements. For a longer lasting all-weather durable flag please see our Knit Polyester Flags.