Wave goodbye to ice-cold hands with Smartwool's Smartloft™ Mitten. Built with 60g proprietary 50% recycled Merino wool insulation, they offer lightweight, packable warmth and breathability—even when wet. Merino lining provides endless comfort, sweat management, and odor control, while wind-resistant nylon with DWR keeps the elements off your hands. Suffice it to say, the cold’s got nothing on these mittens.