The Emerge from Ryka a running shoe built for the neutral to under-pronator who requires enhanced cushioning. Upper made of synthetic upper and air mesh for enhanced breathability. Removable molded Nitracel footbed function as a midsole in the forefoot. N-Gage wrapped heel cup delivers premium cushioning and superior rebound. Double-lasted compression EVA midsole with sleek skeletal support shank. Solid rubber outsole with balanced traction and forefoot flex grooves.