• Lightweight and breathable high-tech mesh upper that reduces the need for additional overlays. • Knit heel pull tab that makes the shoe easier and more comfortable to put on and take off. • 4D GUIDANCE SYSTEM feature designed to respond intuitively under excessive load by providing adaptive stability. • PureGEL technology in the rearfoot that offers a softer and updated version compared to standard GEL technology. • FF BLAST PLUS foam midsole with increased stack height and reduced weight for a more balanced experience. • 3D SPACE CONSTRUCTION feature that improves compression at footstrike and covers gait differences between runners.