Worn on a couple runs Great shoes --- S-Curve Winged Nylon Plate SPEEDROLL Technology FORM FIT Design Forward Propulsion Comfortable Responsive Lightweight Breathable Grippy Upper: Mesh Midsole: PWRRUNPB Foam Outsole: XT-900 Rubber Support: Neutral Sustainability: Recycled Materials Heel Height: 36 mm Forefoot Height: 28 mm Drop: 8 mm Weight: 8.1 oz (229 g)