Go for a legendary run in the Brooks Ariel 18. Soft engineered air mesh lets the upper breathe while a spacious toe box adds to the breathable comfort. An external heel counter reinforces stability. An extended Progressive Diagonal Rollbar guides your body back into its natural motion path with added support. Super DNA for adaptable cushioning. Full-length Segmented Crash Pad built to accommodate any foot landing. Solid rubber for durable traction.