For true power sprinters, a high end combination of power and propulsion Features & Benefits NITROFOAM™ ELITE CUSHIONING: Puma's innovative Nitrogen-infused foam technology now uses the latest aliphatic TPU premium raw materials for even more energy return. The single layer midsole is the perfect combination of elite, light and responsive foam to help propel you farther than ever. PWRPLATE: Carbon Fiber PWRPLATE provides ultimate propulsion SECURE LIGHTWEIGHT FIT: Single-piece ULTRAWEAVE ELITE TECHNOLOGY upper infused with Carbon Fiber treads LIGHTWEIGHT GRIP: 8 permanent pins FULL-LENGTH PEBAX OUTSOLE: Grip & propulsion WEIGHT: 169g (size UK8) STACK HEIGHT: Under 20mm (approved by WA)​ SPIKE BAG: Comes with a FOREVER FASTER branded nylon spike bag​