No need to sprint to feel the benefits of the Pegasus 41. Even when you're running across the playground to catch up with others, the Zoom unit in the heel gives your stride a boost. But if you want to do some endurance running, this Pegasus will also rise to the occasion for a long run. The foam underfoot helps you find your pace and keep it. The mesh upper keeps your foot cool so you can give it your all on every run. Product features The woven mesh is lightweight and breathable to keep your feet fresh, no matter the distance. The Zoom Air unit in the heel provides exceptional responsiveness with every step and stride. It pairs with soft foam to offer all the cushioning you need to go the distance. The rubber outsole features a grippy patterned design for optimal contact on all surfaces and greater durability. Extended heel to optimize landing area with each step and offer more resilience. Padded tongue and lined collar for ultimate comfort. Longer heel to optimize foot placement on the ground. Padded tongue and lined collar for added comfort.