Comfort zone down to -35C Retractable cleat combine anti-slip outsole 100 % Premium Leather 100 % Waterproof membrane 200 gr Thinsulate insulation Waterproof Zipper Lining: 50% Merino wool / 50% Polyester Removeable polyurethane insole Removeable Aluminium/Felt layer Natural rubber outsole Rust-resistant stainless steel cleat Cleat can be replaced