Your smoothest run yet! The updated Men's Nike Pegasus 41 is back again and like nothing you've felt before. Featuring more responsive ReactX foam, it's lightweight resilience that cushions your steps putting less stress on your joints than its predecessors. With 13% more energy return and 43% less carbon impact, it's hitting PRs all over the board. Paired with two Zoom Air units in the heel and forefoot, it literally propels you off the pavement. Plus, enjoy extra room with broadened forefoot and heel widths, while the enhanced engineered mesh upper on your Pegasus 41 keeps you cool and featherlight.