Originally Posted by smallengineguy
Definitely get mittens over gloves, so your fingers are all in the same space.
I agree and the material for the liners would be synthetic fleece.
Will keep your hands warm plus wicks away moisture. I have 3 glove liners with each being thickneer for the fleece liners For the outside glove
I would go with Marmot or Black Diamond glove or Mitten.
I think a mitten or lobster glove would be best. /TO keep the fingers warm you need to keep them together.
The liners I use are Patagonia.
These brands are expensive but you can get deals on ebay and closeout stores.
The last thing I would look at are heat strips. They can run on a pocket battery or 12 volt outlet from the sled. Same principle as a heated lens on the helmet.
Plus you can buy glove liners with pockets on the back of your hand. The pocket is for Heat Gel packs either chemically activated or heated and lasts for hours.
If this does not do it them look at scuba diving lobster gloves used in arctic waters.