Features:- High performance/everyday- Speedroll technology- Smooth Speedroll technology for effortless speed, smooth turnover and propulsive forward motion.- PWRRUN PB foam is a true unicorn, offering the best combination of cushioning and energy return of any foam on the market.- Re-engineered winged nylon plate provides reinforcement while maintaining flexibility.Specifications:Category:- Everyday Training- Speed Training- Foam: PWRRUN PB- Design: Winged Nylon Plate- Weight: 8.2oz (233g)