ASICS Women's Gel-180 Cross-Training Shoe 100% Polyester Imported Rubber sole DuoMax Support System A dual density midsole system positioned to enhance support and stability, positioned sport specifically 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 Trusstic System Technology Reduces the weight of the sole unit while retaining the structural integrity of the shoe Width Specific Designed and built on lasts and molds that are tooled specifically to designated widths