What not to wear
Hi St Helier,
What you wear depends on what you fly, how often and for what purpose.
If you only fly a Pa28 for ten hours per year then just wear your street clothes, perhaps with the addition of a baseball cap, sun glasses and gloves.
If you fly as a diver driver / meat bomber for a sky-diving club, then you have to dress on the assumption that you will be climbing to 15,000' with the door removed and in the event of mishap you just might have to exit the aircraft mid-air and take to the silk! That's when you need a bone dome and a loose grow bag with plenty of room for extra layers of clothing underneath.
I once saw a vintage Cub in which the fuel tank looked like a tin can just above the front seat occupant's shins. Again, if you only fly a few hours annually, it probably doesn't matter what you wear, but if you fly alot, then, I would submit, you would be wise to wear only non-combustible clothing, i.e. a Nomex II grow-bag with underwear made of the same stuff, (all this is available but it costs).
(Nomex and Proban won't protect you from being burned, but neither will they melt onto your skin and ignite! You'll still be burned, but your injuries will be much less severe).
Consider your flying and then decide what you need to wear and ignore the sneers of the stupid and the ignorant.
Broomstick.