The FuelCell foam within these shoes enhances propulsion and aids in propelling you forward. The NDurance rubber outsole technology ensures exceptional durability in areas prone to high wear, maximizing the lifespan of the shoes. These shoes feature a synthetic/mesh construction, balancing breathability and durability. They also offer increased lateral stability with a higher midsole topline. Additionally, PU support is strategically placed at the tip of the shoes for added durability in areas that require extra support.