Zappos.com is proud to offer the Reebok - RunTone+ Express (Salty Grey/Black/Condensed Pink/Silver) - Footwear: Granted society has made our lives a bit more frenetic and fast-paced, there's one area you shouldn't skimp on—your workouts! Run faster, longer while building stamina with the help of the women's RunTone + Express from Reebok! ; Features Reebok 3D Ultralite and Moving Air Technology—built-in balance-pods on the outsole that transfer air in response to your stride and create micro-instability with every step. ; Breathable open-weave mesh upper for comfort. ; Foam-padded collar and tongue for a secure fit and feel. ; SmoothFit technology streamlines seams on the inside and outside of the shoe for comfortable fit with minimized rub and irritation. ; Mesh lining and a removable PU sockliner adds cushioning and easily accommodates orthotics. ; Low-cut design and an EVA midsole provides added mobility and cushioning. ; TPU heelclip gives rearfoot support and stability. ; 3D Ultralite gives lightweight, natural footstrike. ; Forefoot flex-grooves give greater flexibility. ; Multi-surface rubber outsole for traction. ; Imported. ; Weight: 10 oz ; Product measurements were taken using size 7. Please note that measurements may vary by size.