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. Ita (TM)s our most responsive Pegasus, providing high energy return unlike any other. With a lighter-than-air upper, it decreases weight and increases breathability so you can fly fast. This pair takes us back to Nike's heritage with a colorway inspired by the original Peg. Breathable Upper:Circular knit upper helps keep you cool mile after mile. Responsive Cushioning:ZoomX foam in the midsole and ReactX foam in the heel create a new cushioning system for high energy return and peak responsiveness. Sculpted Air Zoom Unit:We sculpted a full-length Air Zoom unit so you can use the power of Air from heel strike to toe off. Waffle Outsole:A modified Waffle outsole with high-abrasion rubber provides durable traction. [] Product Details:Weight:Approx. 325g/11.5oz (Mena (TM)s US 10). Heel-to-toe drop:10mm. Reflective details. Not intended for use as Personal Protective Equipment (PPE). Retro graphic on insole. Style: IR1815; Color: Wolf Grey/Pewter/Sail/Midnight Navy; Size: 8; Gender: Male; Age Group: Adult | Nike Pegasus Premium Men's Road Running Shoes in Grey, Size: 8 | IR1815-012