I realize that this is a tri forum but can’t help noticing that there are quite a few xc skiers on here. Last year I suffered a bit of frost bite duing the canadian ski marathon and consequently am having some difficulty with hypersensitive cold hands this season. Any suggestions re good gloves/mits. Currently using LG claw mit or a sinsalo arctic glove.
Peter
PS Someone recommended smartwool socks a while back. Although I’ve always been skeptical re thicker socks I must say these smartwools are amazing. Thanks for the recommendation.
I have sensitive hands too:
Here’s what works for me
0 to -10C: You basic gloves are fine if I am working hard. I have had good luck with the Paris and AuClair XC gloves
-10 to -20C: I need to switch over to the Lobster Claw glove/mitts
below -20C: Some form of breathable overmitt overtop of lobster or regular goves. If hands get too warm then I can take off the overmitt. Key thing is not letting hands/gloves get really hot a sweaty
Fleck
Yoko gloves have always worked well for me. Their artic gloves are good till about 0F for me if I’m skiing hard. Their windstopper gloves are also good for cold weather.
I found that if I try to wear liners under properly fitting gloves, my fingers actually get colder due to the too tight fit.
On second thought, after thinking about it some more, I guess you could say gloves are like saddles - What works for me may not work for you. My bro in law is always complaining about cold hands when we ski, even if he’s in 2x the glove I’m wearing.
Try them all, then sell what doesn’t work on ebay 
Think snow!
Ron
I’m partial to Profis for most temps, but if really cold the TOKO Thermo + has been enough for me down to -10 F. I agree with the other poster, that it is critical not to get wet hands if you are not exerting yourself. Since I never do anything more than a 50-60 km marathon, this is never an issue. The Canadian can be a long day though. You might also want to think about two pair of gloves. Keep one in your hip pack in case the first gets wet.
Gook luck and have fun.
I’ve found the cold weather neoprene non-padded cycling gloves at my LBS to be super warm. You sweat a little in them but they stay warm regardless. I tested them in 21 degree conditions last week at Lake Tahoe and my hands stayed warm.
Cheers, Karms