ASICS Women's GEL-Solution Speed 3 Tennis Shoe 100% Textile and Synthetic Imported Rubber sole Shaft measures approximately Low-Top" from arch 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. PGuard Toe Protector: Enhanced toe durability. Flexion Fit Upper: Proprietary upper which provides form fitting comfort without sacrificing support. P.H.F (Personal Heel Fit)Collar Lining: 2 layers of memory foam line the collar and mold to the athlete's heel, creating a personalized fit. Solyte Midsole Material: A lighter weight midsole compound than ASICS' standard EVA and SpEVA. Also features enhanced cushioning and durability.