So Is tyvek breathable enough to be a decent wind shirt with out all the sweat and condensation issues. Zpacks has a ripstop nylon wind shirt $110 2 oz. Tyvek painters jump suits with hood cost about 6-8 $ . wt would not be much different. I would make the jacket a little long, and buy another suit to make draw string pants. Frogg Toggs just tear too easily to be a serious consideration.
Your input appreciated.