Durable and lightweight the Nike Pegasus 37 is designed to let you run distances at speed, with a tried and tested fit and feel, React foam and an Air Zoom unit all focused on making your everyday run feel fast. If a shoe has been around for 37 years you can be sure it is doing things right, and with the Pegasus 37, Nike have evolved its design, to provide more React foam, and a forefoot Air Zoom unit that is twice as big as previous versions. React foam is lightweight, springy, and durable. It provides a responsive feel that works alongside the Air Zoom unit to keep driving you forward. Nike have packed even more in, without increasing the bulk which allows for even better cushioning. Top loaded for more bounce the forefoot Air Zoom unit increases the responsive feel delivering a propulsive ride. A translucent upper with mesh throughout provides lightweight breathability that looks as fast as it feels. A midfoot band gives a secure lockdown that adapts to the size of your foot for complete comfort. The Pegasus 37 is specifically tuned for him with 20 PSI for a more cushioned feel. Weight 285g 10.05oz Men39s size 10 Offset 10mm Forefoot 14mm, Heel 24mm React foam Forefoot Air Zoom unit Midfoot band Lightweight and breathable translucent upper.