Nexgrip® Women's Ice RUBY 3.0 Boots offer style, warmth, and comfortable protection with Thinsulate™ insulation and a retractable cleat combine anti-slip outsole. 100% Water-repellent Leather 100% Waterproof membrane Merino Wool blend lining Thinsulate™ insulation Removeable Aluminum/Felt layer Waterproof zipper Removeable Polyurethane insole Natural Rubber outsole with retractable, rust-resistant stainless steel cleat (can be replaced) 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 RUBY 3.0 Boot