Pearl Izumi Men's EM Road N1 v2 Running Shoe 100% Textile and Synthetic Imported Rubber sole Spring/summer 2017 1:1 energy foam in forefoot cushions upon impact and returns energy back to the runner during propulsion Dynamic offset: 1 mm at initial contact to 4.5mm at mid-stance Heel stack height: 19mm (includes midsole, outsole and eva strobel board)