Cold hands make any winter outing miserable. Mittens keep your hands warmer than gloves because your fingers are together where they can warm one another and work together to heat the air pocket around them. Also, mittens have less surface area and fewer seams than gloves, giving heat fewer places to escape. Wet hands are cold hands, so warmest mittens are either waterproof or retain warmth when wet. Here’s a look at some of the best men’s mittens out there.