I like my Lee Parks Designs "DeerTours" very much, but they're not really a winter glove, short and single layer. Still, with heated grips, my hands are very seldom cold at all, and I appreciate the sensitivity a thinner gloves gives me, unlike bulky winter gloves. But my gloves offer absolutely no rain resistance. I've tried the very awkward Aerostich rubber covers (basicially an oversized dishwashing glove, in a pukey green color), but hard to get on over leather gloves, especially if they're already damp.
I've thought about Hippo Hands, but wasn't sure about them. Looks, for one thing. And couldn't find them on line (I understand they stopped selling them for a while, but may have begun again). There are other, similar things out there too, but I wasn't sure how they'd measure up, plus I like to see and hold things before I buy.
Then I found that the local "California Scientific" (CalSci), maker of fine windscreens, has their own "handlebar mitts" on
their website. Since I can ride over there in five minutes, I did, and bought a set. Very sturdy, heavy nylon and fleece-lined, very easy off/on (nice feature when--as usual--they're not needed), and reasonably priced at $30.
I found you
can mount them over V-Strom handguards if needed (I haven't tested them out at speed to see if the wind deforms them and interferes with the levers, a criticism I've read of Hippo Hands. I'll do that soon and edit this post to include that info.) They also make getting to the horn and starter buttons a bit more tricky. They have a steel piece at the hand opening that bends to hold them open so you can take your hand away and easily re-grab the grip. When you take the mitts off the bike, you can bend the opening closed again for flat storage. Looks like I'll be good with my deerskin gloves all the time now.