Preowned in excellent condition Impact Guidance System®: ASICS® design philosophy that employs linked componentry to enhance the foot's natural gait from heel strike to toe-off Dynamic DuoMax® Support System: Enhances stability and support, with reduced weight and increased platform comfort Rearfoot and Forefoot GEL® Cushioning Systems: Attenuates shock during impact and toe-off phases, and allows movement on multiple planes as the foot transitions through the gait cycle FluidRide®: Provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability Guidance Trusstic System®: Enhances gait efficiency while providing midfoot structural integrity Guidance Line®: Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency Heel Clutching System™: Exoskeletal heel counter provides improved support and creates improved heel fitting environment