Cheapskate's way: thin poly glove liners under dishwashing gloves. When
i use these my hands get too hot after an hour or so.

If you buy neoprene, don't go too thick. You lose a lot of finesse on
the paddle while the 3mm of neoprene squishes.

Pogies are surprisingly warm, until you swim. Then you've got nothing,
and your hands lose mobility in about 2 minutes.

Steve Cramer
Athens, GA, USA