New Balance Fuelcell Propel Men's Running Shoes Lead/Black/White : The New Balance Fuelcell Propel running shoes are made to carry you through the run to the finish with speed. Avid runners and racers will love the light and fast feel of this neutral, cushioned modern running shoe. Upper: Sleek silhouette made from lightweight and dynamic materials put together in a bootie style construction for superior fit. The comfortable trace fabric upper material provides zonal function support. Midsole: A high-rebound, FUELCELL nitrogen-infused foam provides long-lasting cushioning and responsiveness. Outsole: Features a lightweight solid rubber and NDurance outsole.