I play Project Runway & I did this for the Unconventional Challenge because I’ve never really work with fabric that dances so much. This rayon blend is very light weight & forgiving. Hard to work with but I think make better covers becuz it’s so much easier to put the pillow in & remove. The insert is misshaped but you get the idea. INSERT DOES NOT COME WITH This is an 18”x18” but because it’s so forgiving you can prob get a 20”x20” in no problem. Fabric was washed before sewing Cold water Mach & I did put in dryer. Needs a little ironing after