Smooth and reliable for distraction-free runs. The Ghost 15 is for runners looking for a shoe that provides a smooth, reliable ride, featuring DNA LOFT v2 for improved cushioning and a trusted, secure fit. The result is a zero-distraction run so you can focus more on what matters most: your run. DNA LOFT v2 provides an improved, soft feeling that is lighter than before. Refined 3D Fit Print enhances secure fit. 3D Fit Print in the heel and saddle provide secure fit to guide the foot. Reflective detailing adds to visibility in the dark. HPR (High Performance Rubber) in the heel adds durability. Green Rubber in the outsole. Ghost 15 is Carbon Neutral.