The women's Reebok(r) Premier FSM DMX II running shoe features DMX Foam and DMX Shear which provide cushioning and reduces the impact of your initial heel strike. The dual-density CMEVA offers stability and cushioning, while the blown rubber forefoot and high-abrasion rubber outsole deliver a durable and smooth cushioned ride. The shoe also features 3M Scotchlite(r) material which provides visibility as you run during low light conditions.