ASICS Women's GEL-160TR Training Shoe 100% Synthetic and mesh Rubber sole Rearfoot GEL Cushioning System attenuates shock during impact phase and allows for a smooth transition to midstance SpEVA Midsole material improves bounce back characteristics and decreases midsole breakdown, DuoMax Support System is positioned to enhance support and stability, positioned sport specifically Trusstic System reduces the weight of the sole unit while retaining the structural integrity of the shoe Width specific Removable sockliner can be taken out to accommodate orthotics