From 5ks to full marathons, the gel-kayano™ 30 (wide) shoe is designed to provide advanced stability and cushioning properties.The new 4d guidance system™ helps provide adaptive stability.Placed on the inside of the midsole, this adaptive foam helps reposition your arch after each impact for a more supportive stride.We also updated the midsole with ff blast™ plus eco cushioning.With approx.24% bio-based content, this material helps create cloud-like softness in every step.Puregel™ technology is strategically positioned below the heel and is 65% softer than conventional visible gel™ technology.Now you can make your distance training feel surprisingly smooth.