From the 5K run to the marathon: The Gel-Kayano 30 has been designed to provide advanced stability and softer cushioning properties. The 4D Guidance System ensures adaptive stability, helping you experience a supportive and balanced stride during your long-distance training. The midsole has been revamped with FF Blast Plus Ecocushioning and an increased stack height of 4 mm. With approximately 20% bio-based materials, this material offers cloud-like softness with every step. The PureGel technology is strategically positioned under the heel, providing a softer running sensation. It is 65% softer than traditional visible Gel technology, allowing for a surprisingly plush feel during distance training.