Fast-R3 is the fastest running shoe we’ve ever made – data-backed, lab-tested, and built for breakthroughs. After testing it on elite runners and real athletes, we digitally engineered and optimized the product fully based on data. Fast-R3 is designed to shave minutes off your race time. With its 3.15% improved running economy* over the Fast-R NITRO™ Elite 2, this translates to an unprecedented potential marathon time saving of more than 4 minutes and 30 seconds for a 3-hour marathon runner. We cut 95g from its predecessor, stacked it higher with new and improved NITROFOAM™ ELITE, and extended the carbon PWRPLATE for maximum propulsion.

*Compared to the PUMA Fast-R NITRO™ Elite 2

• ULTRAWEAVE: Premium lightweight material engineered for breathability
• NITROFOAM™ ELITE: Innovative nitrogen-infused foam technology for exceptional energy return, unbeatable speed, and greater long-distance comfort
• PWRPLATE: Extended carbon fiber plate for powerful propulsion and elite efficiency

Details:

• Stack height: 40mm / 32mm
• Heel-to-toe drop: 8mm
• Cushioning: Max
• Pronation: Neutral
• Regular fit
• Men's Health 2025 Sneaker Awards: Best Marathon Racing Shoe