ASICS Women's GEL-1170 Running Shoe 100% Synthetic and Mesh Rubber sole 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. Trusstic System Reduces the weight of the sole unit while retaining the structural integrity of the shoe. SpEVA Midsole Material