Built for high performance in cold weather, the Muck Nomadic Sport winter boot delivers unparalleled waterproof warmth and superior traction in a sporty casual boot you can wear most anywhere. The sleek upper is constructed from a 100% waterproof textile with a soft, thermal fleece lining and 200G insulation to provide all day warmth and comfort for low temperatures. The outsole features Vibram’s all-new Arctic Grip A.T. with XS Trek Evo for advanced traction on all terrains including wet ice, snow, mixed/loose surfaces and hard pack.