Featuring the latest and greatest materials from , the Kayano 25 aims to provide a luxurious running experience for the moderate to severe overpronator. What's New A new two-part midsole made up of a soft and bouncy top layer, with a lightweight and durable bottom layer, for a balance of cushioning and responsiveness. The addition of a lightweight and breathable Jacquard mesh upper that maintains its structure by adapting to your foot throughout your stride. The Kayano 25 continues to use ' Dynamic Duomax Support System along with a trusstic system, and a sturdy heel counter to reduce the inward rolling of the foot during ground contact. To ensure you enjoy the miles to come, the Kayano's outsole received ' high abrasion rubber in the heel and a responsive blown rubber in the forefoot.