California Slip Lasting for stability and comfort. Rear foot gel cushioning system attenuates shock during impact phase. Open mesh upper provides excellent comfort and breath ability. Removable EVA sock liner is moulded to the shape of the foot. I. G. S (Impact Guidance System) Technology: ASICS design philosophy that employs linked componentry to enhance the foot's natural gait from heel strike to toe-off. Fluid ride Midsole: Fluid Ride provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability. Fluid fit Upper: ASICS Fluid Fit upper technology combines multi-directional stretch mesh with stretch reinforcements that adapt to the athlete's foot, creating a truly customized glove-like fit. Heel Clutching System Technology: Exoskeletal heel counter provides improved support and creates improved heel fitting environment. Rear foot And Forefoot Gel Cushioning Systems: Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle. Dynamic Duomax Support System: This evolution of DuoMax system enhances stability and support, with reduced weight and increased platform support. Guidance Line Midsole Technology: Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency. Guidance Trusstic System Technology: This Trusstic System integrates Guidance Line construction for enhanced gait efficiency while providing midfoot structural integrity. Comfordry X-40 Sock liner: This premium sock liner features higher rebound properties while providing excellent moisture management and a high-level of breathability. Comfordry Lasting: This lasting material features plush underfoot comfort while providing excellent moisture management and a high level of breathability.