Activate your body and mind with the adaptive stability and premium comfort of the GEL-KAYANOâ„¢ 31. The 4D GUIDANCE SYSTEMâ„¢ helps to create adaptive stability, ensuring a supportive and even stride during your distance training. Its midsole is equipped with FF BLASTâ„¢ PLUS ECO cushioning and PureGELâ„¢ technology, which ensure smooth and comfortable distance training. Highlights: Engineered mesh upper improves breathability. External heel counter stabilizes the foot and provides more comfort while running. 4D GUIDANCE SYSTEMâ„¢ helps to create adaptive stability for a smooth stride. PureGELâ„¢ technology for lightweight cushioning and softer landings. FF BLASTâ„¢ PLUS ECO cushioning consists of around 20% bio-based content and gives the feeling of walking on clouds with every step. OrthoLiteâ„¢ X-55 insole for improved comfort. Reflective details designed for better visibility. Hybrid ASICSGRIPâ„¢ improves the ground contact of the outsole. The insole is produced using a solution dyeing process that reduces water consumption by approx. 33% and CO2 emissions by approx. 45% compared to conventional dyeing technology.