Ideal for: competition/tempo run Cushioning: PWRRUN PB Drop: 8 mm (36/28 mm) Surface: Asphalt Distance: 10K Half Marathon Marathon Insole: SRS Technologies SPEEDROLL technology offers propulsion and forward-foot motion without extra effort Energy-saving PWRRUN PB technology provides dynamic, responsive cushioning The design is improved with technical mesh and an integrated upper for a perfect, secure fit Try our new SRS (Super Responsive Sockliner). We dare you not to bounce WINGED, FLUTED TPU: Redesigned plate - Vertical reinforcement to add torsional rigidity while maintaining forefoot flexibility. Weight: 206g