PRODUCT STORY Fast-R3 is the fastest running shoe we've ever made - data-back, 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*, 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 FEATURES & BENEFITS - ULTRAWEAVE: Premium lightweight material engineered for breathability - NITROFOAM™ ELITE: Innovative nitrogen-infused foam technology that offers exceptional energy return, unbeatable speed, and greater long-distance comfort for race-day - PWRPLATE: Extended carbon fiber plate for powerful propulsion and elite efficiency DETAILS - Style: 312061_03 - Color: Heat Fire-PUMA Black - Regular fit - Stack height: 40mm/32mm - Heel-to-toe drop: 8mm - Cushioning: max - Recommended for: neutral pronators - Lifespan: 150km MATERIAL INFORMATION - Midsole: 100% Synthetic - Sockliner: 100% Textile - Outsole: 90% Rubber, 10% Synthetic - Upper: 80% Textile, 20% Synthetic - Lining: 100% Textile