CUSTOMIZED COMFORT: Synthetic upper with soft lining that shapes to the foot. ENHANCED TRACTION: Includes lightweight TPU outsole with conical studs for a quick release and to facilitate pivoting. SLEEK DESIGN: Features a low boot construction. INDOOR TRAINING OPTIMIZED: Specially designed to maximize your performance and comfort during indoor workouts. PUMA BIG KIDS: Recommended for older kids between 8 and 16 years.