Imported Rubber sole Engineered mesh upper: Wraps the foot with a soft feel while improving breathability. ASICS LITE rubber is lighter, stronger, and more sustainable than standard outsole rubbers: AHAR outsole rubber: Improves durability. 3D SPACE CONSTRUCTION feature: Improves compression at footstrike. Rearfoot and Forefoot GEL Technology Cushioning System: Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle.