Features of the Keen Women's Terradora Lace WP Boot Thermal Heat Shield Footbed Captures Warmth Low-Density EVA Midsole Caters To A Womann++S Foot KEEN. FREEZE Rubber Outsole For Traction In Cold Conditions 4mm Multi-Directional Lugs For Traction Stability Shank Delivers Lightweight Support Keen.Dry Waterproof, Breathable Membrane KEEN.WARM Insulation Rated To -25F/-32C Eco Anti-Odor For Freshness PFC-Free, Durable Water Repellent Women's-Specific Fit