Ultrafly 4 delivers a smooth and comfortable ride with light guidance for daily training. The moderately cushioned platform features a 2-density midsole with ZipFoam™ for more long-term resilience and a higher rebound than traditional EVA. The external TPU heel counter, and EVA medial post offer rear-foot stability, and light pronation resistance. The engineered mesh upper provides a seamless and breathable fit, while the molded foam collar and Ortholite® footbed offer additional comfort. Ultrafly 3 is perfect for the customer needing light pronation support in a wide-toe box running shoe.