Brooks' legendary shoe just learned new tricks. Their latest Go-To-Shoe now has our holistic GuideRails support system plus soft yet responsive cushioning. GuideRails Holistic Support System 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. Balanced Soft Cushioning BioMoGo DNA and DNA LOFT cushioning work together to provide a just-right softness underfoot without losing responsiveness and durability. Modernized Fit Engineered mesh and the 3D Fit Print upper provide the structure and proven fit of this Go-To Shoe with a streamlined look. Seameless Transitions An integrated Segmented Crash Pad accommodates any foot landing delivering smooth heel-to-toe transitions SPECS Shoe Category: Support Platform: Universal Platform Midsole Drop: 12 mm Arch: Flat Medium Surface: Road/Track Weight: 11 oz Support Level: Support DNA Layout: Biomogo REGULAR D WIDTH. SRP-$130.