ASICS GEL-KAYANO 20 Women's Running Shoes ** NEW ** FluidRide Midsole - Features a two-layer construction that blends luxurious lightweight cushioning and a responsive bouncy underfoot comfort. ** NEW ** FluidFit Upper Construction - Features 4-way stretch mesh and stretch reinforcements throughout the entire quarter panel on both medial and lateral sides, providing a personalized fit and improved breathability for unmatched upper comfort. I.G.S - ASICS Design Philosophy employs linked components that enhances the foot's natural gait from heel strike to toe-off for improved running efficiency and an improved ride underfoot. Full-length Guidance Line - Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency. Guidance Trusstic - This trusstic system integrates Guidance Line construction for enhanced gait efficiency while providing midfoot structural integrity for a more consistent and directional ride underfoot.