@ SM Carter
...most waders would not stop the fangs of a snake from puncturing. LL Bean used to sella wader they called "Wicked Tough" as best I can recall and it was made from
"kevlar", the stuff that bullet proof vests were/are made from. They might provide a bit of protection.
"Fly-fishing has many attributes, but none more pleasing than it's ability to liberate the young boy that still hides within me and to let that boy live again without embarrassment or regret, sorrow or anguish." Harry Middleton