Built to deliver maximum comfort and stability. Great for long runs, because the Quikspring+ platform features extra volumes of Quikfoam to deliver more comfort. Together with the medial post, the Quikspine structure under the midfoot provides stability for those who over-pronate. The upper features a very comfortable Morphit kimono tongue setup that integrates with the lacing system. The result is a customized midfoot fit that supports you on your long runs. Other features of the upper are the invisible athletic toe which reduces toes to rip through the upper, a super comfy heel cradle and the Ortholite insole which provides extra comfort and breathability.