The Glycerin GTS 20 Running Shoe in Black/Red/Opal for Women from Brooks. 

Our favorite running shoe is 20 and still going strong! Innovative GuideRails make strides smoother than silk, and just-right cushioning cushions every step.

• 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.
• BioMoGo DNA midsole cushioning dynamically adapts to your stride.
• An integrated Segmented Crash Pad accommodates any foot landing, delivering smooth heel-to-toe transitions.
• The asymmetrical 3D Fit Print saddle pulls from the heel and wraps around your midfoot for a secure fit.