Get a little crazy in the all-new Bedlam. Our most springy DNA AMP midsole teamed up with GuideRails holistic support. Energized Cushioning: Brooks’ most responsive midsole, DNA AMP, does more than cushion. It controls, captures and returns energy to help propel your run. GuideRails Holistic Support System: Innovative GuideRails technology proactively guides your foot into proper alignment. The result is less heel and shin rotation, knee rollover and increased peace of mind. Dynamic midfoot shell keeps your foot feeling secure within a high-fitting Fit Knit upper.In excellent condition.