It is always my thumbs that get cold. Even if I manage to keep the rest of my hands warm my thumbs get cold. It is a bummer! I usually use mittens when it is the coldest. With mittens one can keep all the fingers huddled together to help warm one another, but those thumbs … they are out there by themselves … sorta sticking out like a sore thumb one might say. There just is not anyway to keep them warm. I have tried using chemical hand warmers which help but most gloves or mittens just are not made to include a chemical hand warmer along with one’s thumbs. It is very crowded in there and rather uncomfortable. So what is the answer? I wish I had one. If any of you know something that works please share it. And no, whiskey is not acceptable. I am doing my best to …
KEEP ON TRIKIN’
Tadpole Rider 
I live and ride in New England. Fortunately I go to Florida from mid December to mid April to escape the winter. I do ride right up to my departure date and it can get bitter cold. I solved the cold hand/thumb issue by buying an excellent pair of fleece lined Arsuxeo gloves (buy a very big size as they fit snugly) . They are made of a totally waterproof and insulating outer shell and lined with toasty fleece. The finger tips are finished with a fine insert that allows swiping/using the screen of a cell phone or cycling computer. They are fabulous and inexpensive.
Also,….. It Make it really hard to pick your nose, with just your thumb available…..