Let Eternity NITRO be your guide. The engineered mesh upper integrates the runGUIDE tech, designed to hug your midfoot for an effortless ride. For the midsole, NITRO foam provides superior cushioning, combining with other tech elements to give you support: a TPU heel piece for proprioception, reflectivity, and a durable rubber PUMAGRIP for all-surface traction. You lead the way, Eternity NITRO will keep you in line.