ASICS Women's GEL-DS Trainer 20 Flash 100% Synthetic and Textile Imported Rubber sole Shaft measures approximately 2.4" from arch Stability running shoe for moderate overpronation with rearfoot and forefoot GEL cushioning, DuoMax support, and Heel Clutching System Seamless construction Solyte midsole foam Propulsion Trusstic technology Guidance Line vertical flex groove