Mic, if you happen to read this at some point: I'm not sure about the material, but I'd guess it's a blended cotton or possibly silk. Silk and satin tend to be more Jimmy's style, but since the material isn't as shiny as, say, the poppie suit I don't think it's satin at least. Additionally, I think it could get washed in a normal wash instead of dry-clean only, since I've only heard about the poppie suit not being cleaned for the whole tour. Also, cotton is a cool material that takes up sweat easily which is great for stage performances.