I'm probably a bit more of a pussy than most here , since
the water temp at lake Mead rarely goes below 45-deg ; add
a bit of wind, and i get cold Fast
I should have prefaced my response with "i live on the gulf of mexico where the water doesn't usually get below 50* and i won't sail in sub 55* and full sun anymore "
But the scuba gloves 100% block the wind, and when they get wet from spray... it doesn't effect the temperature in the glove much