Our legendary shoe just learned new tricks. Our latest Go-To-Shoe now has our holistic GuideRails support system plus soft yet responsive cushioning. *We've shifted our focus beyond the feet, to the most injury-prone part of a runner's body: the knees. GuideRails keep you moving comfortably by keeping excess movement in check. *BioMoGo DNA and DNA LOFT cushioning work together to provide a just-right softness underfoot without losing responsiveness and durability. *Engineered mesh and the 3D Fit Print upper provide the structure and proven fit of this Go-To Shoe with a streamlined look.