Hardly any wear on these as you can see by the tread. They just didn't work with my gait. My loss your gain. Great squish and bounce and incredible color way! Black and a super bright coral. From 5Ks to full marathons, the GEL-KAYANO® 30 shoe is designed to provide advanced stability and softer cushioning properties. The new 4D GUIDANCE SYSTEM™ helps provide adaptive stability. This helps you experience a more supportive and balanced stride during your distance training. Its midsole is revamped with FF BLAST™ PLUS ECO cushioning and a 4mm stack height increase. With approximately 20% bio-based content, this material helps create cloud-like softness in every step. The new PureGEL® technology is strategically positioned below the heel for a smoother ride. It's 65% softer than conventional visible GEL® technology, allowing your distance training to feel surprisingly smooth.