The new guide 9 is a great support shoe that delivers smooth supportive guidance without sacrificing fit flexibility or its lightweight nature the src landing zone in the heel dual density medial post and full length everun topsole all help provide an efficient stride while also delivering a resistant ride upper hot melted film creates seamless feel in toe box reflective synthetics at heel rundry lining wicks away moisture midsole powergrid creates a smooth responsive ride co moulde