Three stacks of responsive cushioning delivers the ultimate energized ride. The Pegasus Premium supercharges responsive cushioning with a triple stack of our most powerful running technologies - ZoomX foam, a sculpted Air Zoom unit and ReactX foam. It's our most responsive Pegasus ever, providing high energy return unlike any other. Thanks to lighter-than-air materials, it decreases weight and increases breathability so you can fly fast. Breathable Comfort - We took our best practices from the Peg's past while still seeking a minimal feel without sacrificing durability and comfort. It's made of lightweight engineered mesh that helps keep you contained. All-Day Cushioning - The full-length Air Zoom unit offers our optimal level of springiness underfoot, unlocking a level of speed and responsiveness that'll put pep in your miles. Responsive Ride - ZoomX foam in the midsole and ReactX foam in the heel create a new cushioning system for high energy return and peak responsiveness. More Benefits - Modified Waffle outsole uses high-abrasion rubber to provide traction. Carbon footprint of ReactX is based on cradle-to-gate assessment reviewed by PRé Sustainability B.V and Intertek China. Other midsole components such as airbags, plates or other foam formulations were not considered. Product Details - Weight - Approx. 325g/11.5oz (Men's US 10). Heel-to-toe drop - 10mm. Not intended for use as Personal Protective Equipment (PPE).