Design: 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 Padded tongue and collar comfortably protect the foot during outdoor activities In-Shoe Comfort: Breathable mesh lining for comfortable all-day wear PU insole with arch support for long-lasting comfort 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