I replaced mine with material from Carefree of Colorado. Ordered directly off their website and had the material a week later. This replaced a very low cost fabric awning material that lasted three years which replaced the original that lasted eight years. In other words spend the extra and go with name brand in this case.
Installation isn't difficult. As Billyboy posted there are multiple videos on the 'how to' of replacing the material. I did my 16' by myself and nearly fell off the ladder so get help rather than going solo.