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.