You're in search of a Holy Grail.
My absolute cold, slushy, downpour setup is:
Nashbar Windproof Bootie
Nashbar Neoprene Bootie
Lake or Answer Boot
Thin wool sock
Walking about get kinda funny, I feel like I'm wearing concrete overshoes.
But I stay nice and dry.
This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.