Id probably advise you to avoid waterproof membranes for this. If you're in the jungle it'll be so humid they wont breathe at all, and also if water gets on the inside of your boots- which I guess it probably will, it wont be able to get out ever.
So here's a tentative vote towards a leather boot, though I know there are people on here who have actually been to similar places so can offer much better advice than I can.