Take on the trails, push past the limits! Lighter, tougher, and more responsive than ever, the Nike Pegasus Premium NA39 lets you dominate unpredictable terrain with confidence. Backed by a triple stack of Nike’s most powerful technologies, these shoes feature ZoomX foam, a sculpted Air Zoom unit, and ReactX foam to help you push boundaries and run beyond limits. The lighter-than-air mesh upper decreases weight and increases breathability, so you can fly faster with ease. The full-length, superlight ZoomX foam provides springy cushioning, while the full-length Air Zoom unit helps you propel forward like never before. Fast, efficient, and always ahead of the curve, the Nike Pegasus Premium NA39 lets you rack up mile after mile in no time. Nike Pegasus Premium NA39 features: Upper with a breathable mesh provides maximum ventilation and comfort. Modified Waffle outsole with a high-abrasion rubber offers traction. ReactX foam midsole is 13% more responsive than previous React technology. Weight: 9.7 oz. Heel-to-toe drop: 10 mm. *Not intended for use as Personal Protective Equipment (PPE).