Nike Womens Pegasus 41. Responsive Cushioning In The Pegasus Provides An Energized Ride For Everyday Road Running. Experience Lighter-Weight Energy Return With Dual Air Zoom Units And A Reactx Foam Midsole. Plus, Improved Engineered Mesh On The Upper Decreases Weight And Increases Breathability. Style Code: Fd2723-404 The Finer Details. Upgraded Breathable Engineered Mesh Upper. Reactx Foam Midsole Surrounds Forefoot And Heel Air Zoom Units For An Energized Ride. Signature Waffle-Inspired Rubber Outsole For Traction And Flexibility. What's New? All-New Reactx Foam Midsole Is 13% More Responsive Than Previous React Technology. Plush Collar Tongue And Sockliner For A Secure And Comfortable Fit. Crafted For Performance And Planet, Reactx Foam Is Engineered To Reduce Its Carbon Footprint By At Least 43% In A Pair Of Midsoles Due To Reduced Manufacturing Process Energy Compared To Prior React Foam. The Carbon Footprint Of Reactx Is Based On Cradle-To-Gate Assessment Reviewed By Pré Sustaina