Fast-R3 is the fastest running shoe Puma has ever made – data-back, lab-tested, and built for breakthroughs. After testing it on elite runners and real athletes, Puma digitally engineered and optimized the product fully based on data. Fast-R3 is designed to shave minutes off your race time. 

Features

• PWRPLATE: Carbon fiber plate engineered to stabilize the midsole while maximizing energy transfer
• NITROFOAM™ Elite: Extremely lightweight, premium performance foam technology for pinnacle responsiveness