FF BLAST PLUS cushioning: Our softest cushioning material that's also lightweight GUIDESOLE technology: Helps create smooth toe-offs and advanced energy savings Mesh upper: Improves breathability ASICSGRIP outsole rubber: Provides advanced grip for various terrains The sockliner is produced with a solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology: Makes it easier to put on and take off, thanks to its tongue-hole and pull tabs on both the heel and the top of the tongue