I was looking at waterproof gloves in the hardware store (not for paddling) and saw a couple of models that would probably work as outer shells for wool liner gloves.
Hands would get damp from sweat, of course, and maybe some leakage down the wrists also, but wool does retain some insulating value even when soaked.
Because these gloves were so inexpensive, experimenting with them would not be a big deal. You can always use them for household and yard cleaning duties if they don't work out for paddling/sport uses.
First Need Purifier
Kayak & Canoe Outriggers
|Table of Contents|