Ugggh, ouch!!!!! Been there and done that. Any uniform should be legal under those circumstances.
When I was a kid, my Dad and I pulled Poison Ivy/Oak up by its roots with out bare hand and neither had any reaction at all. Fast forward 45 years when I had a piece of rental property in North MS and my tenant complained of having poison ivy in her rose bushes. So I sat off to rectify the situation and upon arrival, I stripped down to my Bda shorts with no shirt or socks and waded into the stuff like I was still a kid. Needless to say, my immunity as a kid was no more and I was laid up for two weeks before I could put any clothes on at all. Couldn't have stood a watch in any uniform, legal or illegal.
