Funny you should ask, Brian.
Another poster on this Forum claims his dealer said it was vinyl. At least one online dealer claims it is fiberglass. I frankly think they are guessing, since it is not mentioned anywhere on Forest River's website or brochure. I'd like to hear from someone with Forest River; maybe one of us can ask our rep.
Gary Shapiro, 2011 Georgetown 29' Class A
Dash, Molly & Lily - now at the Bridge and forever in my heart
Shadow - 4-year-old Greyhound
Hannah - 1 1/2-year-old GSD rescue