So looking at tablecloth shortcut to DIY and see poly and crinkle taffeta. Any opinions thrown at me here would be appreciated. I don't want stretch, or at least limit it, and it's got to be abuse resistant.

I am 240# and will might get two to double it up and place some insulation between them for this version.

Also, I am not unnecessarily weight conscious when it comes to gear. It should be bomb proof first. Form follows function. Ask my cycling friends about that.