• Comfort zone down to -31F
• Retractable crampon combined with a non-slip sole
  
• 100% premium leather
  
• 100% waterproof membrane
  
• 400 g Thinsulate insulation
  
• Lining: 50% Merino wool / 50% polyester
  
• Removable laminated polyurethane weatherproof insole
  
• Removable aluminium/felt insole
  
• Real rubber sole
  
• Crampon made of stainless steel