Pegasus Premium charges up your run with the most responsive cushioning system ever, powered by our most advanced running shoe technologies — ZoomX foam, a full-length Air Zoom unit that contours to your foot, and ReactX foam. This is the most responsive Pegasus ever, delivering unmatched energy return. The upper, lighter than air, reduces weight and boosts breathability, helping you soar faster than before. The structurally engineered mesh is lightweight and breathable, providing a secure, locked-in fit. Your foot sits on a full-length ZoomX foam midsole — Nike’s most responsive foam — which delivers incredible energy return with every stride. The full-length Air Zoom unit adds a powerful spring underfoot, unlocking next-level speed and responsiveness to keep you energized throughout your run. Beneath the ZoomX foam and Air Zoom cushioning system lies ReactX foam, which is 13% more responsive than previous React technology, ensuring smooth, balanced transitions. The modified waffle outsole pattern features high-abrasion rubber for exceptional traction and durability.