We live in Buffalo, NY where winters are harsh. My husband rides early in the morning and afternoon about 6 miles each way. The temperature is often below freezing, especially early in the morning – wind and snow make the cold worse and make his hands very wet. He says he arrives at work every morning with numb fingers and can't type for the first 20 minutes or so until they thaw.

I want to buy him some gloves that will keep his hands warm in the conditions he deals with. What should I be looking for? What features make a good glove for winter commuting in a cold, wet climate?