Nexgrip® Women's Ice LANNA Boots offer style, warmth, and comfortable protection with Thinsulate™ insulation and a retractable cleat combine anti-slip outsole for winter snow and ice. 100% Water-repellent Leather 100% Waterproof membrane Merino Wool blend lining Thinsulate™ insulation Removeable Aluminum/Felt layer Waterproof zipper Removeable Polyurethane insole Natural Rubber sole with clamp made of Stainless Steel – Anti-corrosion (can be replaced) Compatible for snowshoeing New concept of patented crampon sole Product Features: Insulation:200 g Thinsulate™ Waterproof:Yes Upper:Water-repellent Leather Lining:50% Merino Wool, 50% Polyester Insole:Polyurethane, removable Comfort Range:Rated down to -35C Outsole:Non-slip, non-marking Natural Rubber traction with retractable Rust-resistant Stainless Steel cleat Insert:Waterproof, breathable membrane Liner:Removeable Aluminum/Felt layer Nexgrip Women's Ice LANNA Boot