Design: 200g of KEEN.WARM insulation rated to -25degF/-32degC Waterproof synthetic and textile upper for a breathable, durable fit Lace-lock bungee system for kid-friendly on and off KEEN.DRY waterproof, breathable membrane PFAS-free, durable water repellent treatment In-Shoe Comfort: Fleece lining for added warmth Durability & Traction: Non-marking KEEN.FUSION rubber outsole adds lightweight durability Multi-directional lug pattern provides superior traction Additional Details: Eco Anti-Odor for natural odor control