In honor of the Chicago Marathon, the Saucony Kinvara 7 Chicago edition running shoes continue to provide that lockdown fit and resilient ride you’ve come to love from this series. This update sees the addition of an EVERUN Heel Insert to give you even more cushion exactly where you need it most. Refresh your look with this special color way.Upper: FLEXFILM™ lightweight yet strong material allows for fewer layers in the upper for a seamless, flexible feel. RUNDRY Lining combines superior moisture wicking properties with a plush feel for comfort. Padded tongue and heel collar enhance comfort. Flat laces reduce irritation.Midsole: EVERUNHeel Insert provides a lively, resilient ride while providing continuous cushioning and enhanced energy return properties. EVA+™ High Abrasion EVA foam is a lighter alternative to rubber in the midsole and outsole construction. Removable insole.