Combination synthetic and mesh uppers. Padded collar and tongue offers a snug, comfy fit. Gender-specific cushioning gently cradles the woman's foot. Impact Guidance SystemÂ® I.G.S.Â® - ASICS design philosophy that employs linked componentry to enhance the foot's natural gait from heel strike to toe-off. Redesigned PGuardâ"¢ Toe Protector for enhanced toe durability. SolyteÂ® midsole materialâ€"a lighter weight midsole compound than ASICS standard EVA and SpEVAÂ® â€"delivers enhanced cushioning and durability. Dual-density DuoMaxÂ® Support System positioned to enhance support and stability, positioned sport specifically. Rearfoot and Forefoot GELÂ® Cushioning Systems attenuates shock during impact and toe-off phases and allows movement in multiple planes as the foot transitions through the gait cycle. P.H.F.Â® Personal Heel Fit - Two layers of memory foam line the collar and mold to the athlete's heelâ€"creating a personalized fit. Hidden Trusstic System® reduces the weight of the sole unit while retaining the structural integrity of the shoe. AHAR® ASICS High Abrasion Rubber placed in critical areas of the outsole for exceptional durability. Non-marking rubber outsole for grip. Imported. APMA Seal of Acceptance.