COMFORT AND STABILITY: The Voltaic features our 10 Cell technology that provides the wearer with comfort, as well as a TPU shank that supplies stability. ULTIMATE TRACTION: The outsole is designed with full length rubber coverage for ultimate traction. ADDED DURABILITY: Features a TPU toe cap for supreme durability. SECURE FIT: The cage overlay detail creates a unique lacing construction, ensuring a secure fit. PUMA BIG KIDS: Recommended for older kids between 8 and 16 years.