Medium width (B), Brand New with Box SUPPORT AND CUSHION: Provides just the right amount of stability and support, great for overpronation while providing high energizing cushioning. Ideal for road running, cross training, the gym or wherever you might want to take them! BALANCED, SOFT CUSHIONING: The updated midsole is now 100% DNA LOFT cushioning paired with the Segmented Crash Pad for an even softer, smoother ride and easier flow from landing to toe-off. MODERNIZED FIT: More strategic use of the 3D Fit Print upper technology offers the structure and proven fit the Adrenaline is known for without excess bulk. GUIDERAILS HOLISTIC SUPPORT SYSTEM: We've shifted our focus beyond the feet to the most injury-prone part of a runner’s body: the knees. GuideRails keep you moving comfortably by keeping excess movement in check.