Taylor Stevenson wrote:
As was mentioned above, almost even more critical is what you wear under your flight suit. Avoid synthetics at all cost. Wear nomex or cotton clothes underneath. Avoid shorts under your flight suit. Avoid short sleeves under your flight suit. Avoid ankle socks. Avoid tennis shoes. Obviously, a flight suit over a t-shirt and shorts is better than nothing, but I try to go overboard in the slim chance of an in flight/post impact fire. I also echo to get a size (or two) larger than what "fits" you to give you plenty of room for clothes underneath, items in your pockets, etc. Please do not get the Blue Angels' standard Extra-Medium size. Nomex degrades with washing, so my M.O. is to wear mine until my wife makes a comment about my "fragrance," and then wash. In addition to a flight suit, get a good helmet. They're not just for comms, impact protection, or to look cool.
Some of the latest tech nomex under garments used in pro-motorsport is very comfortable now, and very technical, and great for sweat wicking as well, and its easier to wash this than a flight suit.....not hugely expensive either.
I used to have about 3/4 sets of nomex shirts/tee-shirts/long johns/socks etc for wearing under my race suit, and the race suit never really got that fragrant, and only needed a pro-clean once ever couple of years.