Amazon.com | Brooks Men。SHOE SIZE: \"D\" = Medium width ENERGIZED FEEL: Delivers a responsive and springy ride to add extra lift to your stride without compromising support or speed. SUPPORT SYSTEM: Next-generation Guide Rails provide holistic support by guiding your feet into alignment—reducing heel and shin rotation, and keeping excess knee motion in check. RESPONSIVE CUSHIONING: This responsive cushioning provides best-in-class energy return, for a dynamic, springy, responsive ride. Your own energy is conserved, allowing you to put more into every stride. SECURE FIT, INCOGNITO COMFORT: The dynamic midfoot wrap makes feet feel secure inside of the highly adaptable Fit Knit upper. The covert wraparound heel collar treats your feet to plush comfort. A sueded heel tab protects your Achilles from irritation. Description Get a little crazy with the brand new Bedlam. Our more elastic DNA midsole AMP allies with GuideRails holistic support. Energized cushioning: Brooks\'s most reactive midsole, DNA AMP, does more than amortize. Control, capture and return the energy to help you fuel your run. GuideRails holistic support system: GuideRails innovative technology proactively guides your foot to the right alignment. The result is less rotation of the heel and tibia, knee movement and greater tranquility. The dynamic covering of the mid-foot makes the foot feel safe inside a high fit Fit Knit upper.