One-piece engineered mesh upper. Ud Foam™ midsole - lightweight, ultra-high rebound, and ultra-durable. Ultra Rebound™ insole for maximum energy return against the foot. 3-piece lugged traction rubber outsole capable on road or light trail surfaces and in varying climate conditions. Weight: 230 g in size UK5. Stack height: heel 38 mm, forefoot 28 mm. Drop: 10 mm.