Springy foam plus snappy Air Zoom units equals our most energized ride. Responsive cushioning in the Pegasus provides an energized ride for everyday road running, day or night. Experience lighter-weight energy return with dual Air Zoom units and a ReactX foam midsole. Plus, reflective paint on the upper lights up your route. Responsive Ride ReactX foam midsole surrounds forefoot and heel Air Zoom units for an energized ride. It's 13% more responsive than previous React technology. Waffle-Inspired Traction Signature waffle-inspired rubber outsole provides traction and flexibility. Plush Padding Plush collar, tongue and sockliner provide a secure and comfortable fit. What's New? * ReactX foam midsole * Lighter, more breathable engineered mesh upper Product Details * Reflective Swoosh logo, overlays and laces * Not intended for use as Personal Protective Equipment (PPE) * Weight: Approx. 297g/10.5oz (Men's US 10) * Heel-to-toe drop: 10mm * MR-10 Last - Our best, most consistent fit (same as Pegasus 40)