Puma Fast-R Nitro Elite 2 Mens Running Shoes in Red. These shoes are designed for optimal performance on race day. Featuring enhanced NITROFOAM™ ELITE and PWRPLATE technologies for a more propulsive ride and optimized running economy. The ULTRAWEAVE upper provides a lightweight and secure fit, while PWRTAPE ensures control. Suitable for distances from short sprints to marathons, offering exceptional speed and cushioning. The advanced midsole technology uses premium materials for maximum explosive energy return, and the full-length carbon fiber plate is engineered for peak propulsion.