The ski team I was on had a ramp covered in nevplast for their bagjump. I've never fallen on the in run but sure wouldn't want to. After a summer of bagging 5 days a week, the bases along my inside edge were eaten down a bit. If you're skiing like a park with the stuff, I'd probably say sweat pants and maybe something long sleeved. If just a drop in to an airbag, then it probably doesn't matter much.