Taylor is right, but he has a higher tolerance for heat than I have. (I watched him when we were each at IAG in 2018!) Airshow ramps are often 95F, with 95% humidity. Wearing nomex in that situation is for me very uncomfortable. And British aeroplanes are often very hot inside when the hood is closed.
A solution is to change out of the flight suit as soon as possible after landing, but since you still need to represent your organization it should be into a branded shirt with a name tag, and a matching hat. Like here, at OSH:
https://youtu.be/SRjiw-U0sfgGloves should be light-colored, or else your wingmen can't see your hand signals.
Shoes are very important with all taildraggers. They should be narrower than most running shoes sold these days, and without a backward-projecting heel (which tends to bind when you need to move the rudder quickly, like on roll-out).
Dave