ASICS Women's GEL-Pulse Running Shoe 100% Synthetic and mesh Rubber sole Rearfoot GEL Cushioning System attenuates shock during impact phase and allows for a smooth transition to midstance Trusstic System reduces the weight of the sole unit while retaining the structural integrity of the shoe ComforDry sockliner provides cushioning performance and anti-microbial properties for a cooler, drier, healthier environment SpEVA Midsole Material improves bounce back characteristics and decreases midsole breakdown Open mesh upper provides excellent comfort and breathability