ASICS Women's Gt-2000 5 Running Shoe 100% Mesh/Synthetic Imported Rubber sole Shaft measures approximately Low-Top" from arch fuzeGEL Midsole: ASICS new GEL cushioning technology made from the fusion of GEL and foam creates lightweight comfort, tuned to provide rearfoot shock absorption that shifts to forefoot bounce back. Dynamic DuoMax Support System: This evolution of DuoMax system enhances stability and support, with reduced weight and increased platform support. Rearfoot 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. FluidRide Midsole: FluidRide provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability. Guidance Trusstic SystemTechnology: This Trusstic System integrates Guidance Line construction for enhanced gait efficiency while providing midfoot structural integrity.