Soft cushioning meets industry leading support. Guiderails Holistic Support System: Brooks went beyond the foot, focusing on the body part of a rider more prone to injury: knees. Guide rails allows you to move in comfort while controlling excess movements. Soft and balanced cushioning Biomogo dna and dna loft cushioning work in synergy to create the right softness to the sole of the foot without losing responsiveness and longevity. Modern fit. The 3D Fit Print mesh and upper give a tapered look to the structure and fit of this unmissable footwear.