Outdura is a very durable, tightly woven mesh fabric which has a rich, textured appearance and is comprised of polyester-based fibers. Outdura is treated with a vinyl coating that makes it soil-resistant, mildew-resistant, flame-retardant, and extremely durable – with respect both to its color vibrancy and wear and tear. Outdura is so tightly woven that it has provided up to a 95% sunscreen rating in manufacturer’s tests.