I know that professional racers wear one-piece leather suits to race. As I plan on attending my first track day event at Grattan Raceway this spring, I am wondering whether textile suits are recommended for use or even allowed.
I understand that two-piece suits whose jacket zips fully with the pants are permitted but I'm not clear if leather suits are mandatory. If any of you have personal experience I would be interested in hearing from you.
As an aside, I would be curious which of the two materials is more durable/tough in withstanding abrasion with asphalt (I have no plans to dump my bike but it's good to know that I'm well protected should it happen).
P.S. I have a BMW AirFlow and a BMW Rallye 3 two-piece suit neither of which I suppose is ideal. Thanks.