Recommended for low and flat arched feet.. Women"s 9 - US size selected. * High-tech Carbosan top cover that cushions the foot and absorbs shock forces. Top cover material is anti-odor and anti-bacterial to keep your feet in a healthly clean environment. * This outsole is posted in the rearfoot to control pronation and the rearfoot is balanced * The Lynco sports orthotics are designed to provide maximum foot comfort and protection in running & walking footwear. * Lightweight- resilient design