I'm a FAA rated parachute rigger. If you can post a picture I may be able to tell what you have as far as material. Sometimes you get the data patch on one of the panels / gores depending on the type of parachute. There may also be panel numbers on the lower edge. These can help identify the type of canopy and the material. We used to make all type of things out of emergency personnel parachutes when I was at the military survival school back in the day, still have a killer teepee made out of 1.1 oz ripstop, uncoated, that keeps light rain off well enough even though it is uncoated. The orange, white, tan and brown looks neat too.