Comfort zone down to -55C
Retractable cleat combine anti-slip outsole
TPU Shell
100 % Premium Leather
100 % Extreme Waterproof Bootie Sock
Waterproof zipper
600 gr Thinsulate insulation
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
Sole has a Patent approved