The award winning Guide model has been setting the pace for stability shoes for the past decade. Now the Guide ISO raises the bar again with an innovative ISOFIT design for a more refined fit. Medial support provides an effortless transition with every step. Overview ? EVERUNTM Topsole construction for enhanced energy return and continuous cushioning throughout the run ? Updated ISOFIT design creates a dynamic fit system by adapting to the shape and motion of the runner's foot ? Engineered mesh upper for a dynamic, lightweight fit ? Medial posted midsole ? PWRFOAM midsole design Specs ? Shoe Category: Guidance ? Pronation: Moderate ? Cushion: Plush ? Construction Type: Stability ? Surface: Road, Track ? Arch: Normal (Mid), Low ? Water Resistant: No ? Waterproof: No ? Offset: 8mm ? Heel Stack Height: 27mm ? Forefoot Stack Height: 19mm ? Weight: 9.1 oz. | 258 g. ? Fit: Wide