ASICS GEL-Fortitude 8 Women's Running Shoes Mid Grey/White/Porcelain Blue : The ASICS GEL-Fortitude 8 continues as the staple well-cushioned, motion control running shoe. Packed with a variety of stability and comfort-focused technologies like the SpevaFoam&trade midsole material and the GELA(R) technology cushioning systems, these running shoes offer the utmost in stability for the runner who needs it most. Upper: Padded tongue and heel collar enhance comfort. Lace-up front offers an adjustable fit. Synthetic overlays provide lightweight support. Mesh provides breathable flexibility. Midsole: Guidance Trusstic SystemA(R) integrates Trusstic SystemA(R) and Guidance LineA(R) for enhanced gait efficiency while providing midfoot structural integrity. ComforDry(TM) Sockliner provides cushioning performance and antimicrobial properties for a cooler, drier, healthier environment. SpevaFoam(TM) Midsole material improves bounce-back characteristics and decreases midsole breakdown. Rearfoot and Forefoot GELA(R) Cushioning Systems attenuate shock during impact and toe-off phases, and allow movement on multiple planes as the foot transitions through the gait cycle. Maximum Support Last provides more depth and width throughout the mid- and forefoot to accommodate athletes with higher volume feet or who wear orthotics. Impact Guidance System (I.G.SA(R)) employs linked componentry to enhance the foots natural gait from heel strike to toe-off. Outsole: DuraSpongeA(R) out sole is a blown AHARA(R) rubber compound for enhanced cushioning and durability in the forefoot. Guidance LineA(R) vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.