This winter boot is strong and weather ready without being heavy or stiff. Starting at the top, the removable felted wool collar unlocks to reveal and adjust lacing for customizable comfort, protection and style. The calf features stretch leather and an extended waterproof zipper for easy on-off and on-the body comfort that moves with you, not against you. Pre-teated for water repellency and lined with 3mm of shearling wool these weather ready boots are a luxurious and functional addition to your winter closet. The Vibram® N-Oil Litebase outsole, made with more than 90% natural ingredients provides an eco-conscious and lightweight element along with optimal grip for a variety of conditions.