Golden advice Vinyl really is nasty stuff- even in a hot car it outgasses and makes a yucky film on the windows. Even a wire that gets hot could be enough to make it outgass a lot of bad stuff- and effect the pilot well before it is clearly alight. Vinyl really is a NO, No for aircraft. Go leather in a thin grade- similar weight and no disadvantages. Given the amount most would use the price should be affordable. Mother Nature did a great job.