Quote "True enough. But if the plane is going to burn up with you inside it -- it doesn't matter if you're wearing clothes or not...
That being said, I'm of the same school -- long sleeves and pants whenever flying and when in a foreign location, long pants and maybe a t-shirt, but a light spring jacket is always close by." Quote
If safety in the air is on your mind, arms and legs should be covered and nylon should be avoided. Nylon melts and causes the worst burns.