A blend of cushioning technology makes the latest version of Brooks' cushion runner a smooth experience.Synthetic and air mesh upper with stabilizing heel overlayHeel and forefoot Hydroflow(R) HSFT-XL(R) system for optimal cushioning through the gait cycleFull length dual density S-257(R) midsole for added stabilityCush-Pod(R) engineered comfort insoleE-1(R) durable traction outsoleWeight: 12.5 oz. more...