FEATURES of the Pearl Izumi Men's EM Road N 1 Shoe Seamless Upper creates a supple, glove-like fit Dynamic offset-shaped E:MOTION midsole delivers a responsive, smooth ride with an ideal balance of cushioning and support 1:1 Energy Foam cushions forefoot upon impact and returns energy back to the runner Outsole combines outsole-grade EVA with blown rubber in forefoot for traction, durability and a lively feel Dynamic Offset: 1mm at initial contact to 4.5 mm at mid-stance Heel Stack Height: 19mm (includes midsole and outsole) Ultra-smooth, light-as-a-feather running experience SPECIFICATIONS of the Pearl Izumi Men's EM Road N 1 Shoe Weight: 7.7 oz / 218 g