Product Description Our most-loved support shoe is smoother than ever. For runners who need support but want a soft and stable landing, the Adrenaline GTS 22 offers GuideRails holistic support as well as DNA LOFT now extended throughout the midsole for an even smoother ride from heel-to-toe. The result is a zero-distraction run so you can focus more on what matters most: your run. DNA LOFT now makes up the entire midsole. Simplified midsole construction creates more seamless transitions. More strategic use of 3D Fit Print technology provides structure that moves with the foot.