Merrell Siren Sport Kids Hiking Shoes. Cruise at your own speed in the Merrell Siren Sport hiking shoe. Uppers of genuine full grain and synthetic leather with ample breathable mesh ventilation. Q-Form triple-density molded footframe promotes healthy alignment. The heavier lug pattern Vibram sole delivers vital traction in high-friction areas and under the arch. # Full grain leather and mesh upper # Synthetic leather strapping # Merrell Air Cushion midsole # 4.5mm anatomical footbed # Nylon 6.6 injection molded shank # Vibram Siren TC5+ rubber outsole