Comfort zone down to -35CAvailable 4E widthRetractable cleat combine anti-slip outsole100 % Repel Leather100 % Waterproof membraneWaterproof Zipper200 gr Thinsulate insulationLining: 50% Merino wool / 50% PolyesterRemoveable polyurethane insoleRemoveable Aluminium/Felt layerNatural rubber outsoleRust-resistant stainless steel cleatCleat can be replaced