PRODUCT STORY 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 optimised 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. This PUMA x SAYSKY version features a custom graphic inspired by autumn leaves and origami. *Compared to the PUMA Fast-R NITRO™ Elite 2. FEATURES & BENEFITS ULTRAWEAVE: Premium lightweight material engineered for breathabilityNITROFOAM™ ELITE: Innovative nitrogen-infused foam technology that offers exceptional energy return, unbeatable speed, and greater long-distance comfort for race-dayPWRPLATE: Extended carbon fibre plate for powerful propulsion and elite efficiency DETAILS Fit: RegularToe Type: RoundedFastener: LacesHeel Type: FlatHeel-to-toe drop: 8 mmStack height: 40mm/32mmPronation: NeutralLifespan: 150kmCushioning: Max