The Excursion is part of Dakines Highline series designed to be used in extreme conditions & still perform. The excursion uses Gore-tex manage moisture away from your skin which can make you cold & also is an excellent waterproof membrane. Dakine then add a primaloft insulation to make sure you stay warm with a whopping 170g insulation in this glove plus a wool lining to the glove for even more thermal properties. This is one of the warmest gloves available.