THIS WOMEN’S SHOE IS FOR: The Adrenaline GTS 23 is for runners who need support and want a smooth, reliable ride. GUIDERAILS HOLISTIC SUPPORT SYSTEM: Our unique technology aligns your body in its natural motion path while keeping excess movement in check. SOFT, LIGHTWEIGHT CUSHIONING: New midsole features soft and lighter weight DNA LOFT v2 cushioning. ENHANCED UPPER: Engineered air mesh upper provides comfort and breathability with 3D Fit Print for added structure. TRUSTED, SECURE FIT: Engineered Air Mesh and use of 3D Fit Print to enhance upper and deliver the structure and proven fit the Adrenaline is known for.