the topsheet is HDPE. Its a type of polycarbonate plastic that is very hard, smooth, and decently cheap. Interstate plastics here in Boise sells it. I got two 8 foot by 1 foot pieces for 32 bucks each.
so gay you guys straight pose!!! if its not in skin tight spyder apparel getting ready to straight murk down a race line its lame...also gotta use bent poles hahahha