Runners with flat feet often benefit from additional cushion and a supportive shoe. If you need the best running shoes for wide, flat feet, an excellent place to start is the Kayano 25, the top stability trainer from Asics and the latest version of a shoe that practically invented premium cushioning. Gel units in the heel and forefoot gently absorb ground impact forces, while the dual density sole adds to the responsive cushioning. All of that has turned runners with narrow, medium, and wide feet into devoted fans of the Kayano since 1993.