Dynamic DuoMax Support System: Midsole system positioned at an angle to support and engage the foot only when required Improved fit holds the entire foot better while providing superior toe spring New Convergence GEL Technology: GEL cushioning placed closer to the foot to replicate the comfort of your foot's natural tissue, increasing function and shock dissipation FlyteFoam Midsole Technology: 55 percent lighter than the industry standard with organic fibers that bounce your shoe back to its original shape in the space of each stride to provide perfect cushioning from the start of your run to the finish Impact Guidance System: ASICS design philosophy that employs linked componentry to enhance the foot's natural gait from heel strike to toe-off FluidFit: Combines multi-directional stretch mesh with stretch reinforcements that adapts to the athlete's foot, creating a truly customized glove-like fit FluidRide: Provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability Heel-To-Toe Drop: 13mm Predecessor Product Type: GEL-Kayano 22