Thanks to years of studying the body in motion, our research team found that every runner’s joints have a path of least resistance, or habitual motion path (HMP).

When a runner’s joints deviate from their HMP while running, there can be greater loading on their knees, which can lead to running-related injuries. Our footwear engineers took these findings and developed advanced running technology that doesn’t “fix” your run. Instead, our shoes optimize it and support your distinctive Run Signature.

Based on these scientific findings, our footwear engineers developed
GuideRails® support system — our advanced running technology for
runners who deviate from their HMP.