Ok so I ski in Alaska, and I need a GLOVE (not a mitt) that can keep my hands warm in -20 conditions. I'd like goretex in the glove since I'm shelling out some money for these, and they must be durable (ie the palms don't get torn appart the first day). I'm tired of cold hands. Are the dakine cobra gt gloves a good choice? Feel free to add any suggestions.