I've been to it before, It is very hot, windy and dusty, I would not take a wool or PV kilt out there, maybe a canvas or leather like you mentioned. and some goggles!
Honestly I could go on and on about about the pros and cons of people paying big bucks to go to the middle of nowhere, listen to crappy jam band noise 24/7, get higher than Amy Winehouse, and have random unprotected 'relations'.
(although I'd say you do not really need to go to the wasteland to do that!)
But it does make for interesting 'people watching'