Puma Fast-R NITRO Elite 3 men's Thermal Tights marked with a carb scale

marked with a carb scale so you know exactly how much you're packing

outstanding comfort

Nitrogen-infused DNA FLASH midsole is extremely lightweight and returns energy with each step

Midfoot reinforcement (EVA): stabilizes and controls the stride

Puma Fast-R NITRO Elite 3 men's Thermal Tights marked with a carb scaleTHE NEED FOR SPEED. The Fast R3 is the fastest running shoe Puma has ever made data backed, 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. With its 3. 15% improved running economy*,this translates to an unprecedented potential marathon time saving of more than 4 minutes and 30