The go-to material for single-sided short-term outdoor banners remains 13oz. scrim vinyl. The scrim vinyl is a polyethylene substrate, reinforced with polyester cording. This internal cording is what gives it strength and durability to withstand damaging winds and weather conditions and how it is also quickly identifiable from the "cording". The printable face is a smooth surface but the internal cording is still slightly viewable from even the front, and clearly identifiable on the non-printed back. All our Indoor Banners are printed on a super smooth 13oz. vinyl. From retail storefronts to trade shows, textural appearance and image quality is paramount. Presenting your message in a crisp, polished manner requires an elegant, smooth finish for your banner. The material has been also engineered primarily for indoor use so it doesn't have the same strength and durability of 13oz. scrim vinyl. In addition, since it is meant for indoor use, a greater variety of grommet colors is available.