BioMoGo DNA, Brook's proprietary cushioning, adapts to your stride, weight and speed. Why? So it can protect you by deflecting impact away from your body. The extended Progressice Diagonal Rollbar (RDRB) is a support system for your entire body. It strategically positions arch support to guide and keep your body in its natural path of motion. What stands between you and a lack traction? An innovative outsole that's been certified (ATSM F489-96) for slip resistance.