Ideal for high heels and ballet flats. Relieves pressure, relaxes your feet and stimulates your circulation. Keeps your feet from slipping forward, giving you grip in your shoes. Does not take up any additional space in your shoe. Flexes to any foot position. High-quality veg-tanned leather, 100% free PCP, absorbs moisture and reduces foot ache. Glued with water-soluble, solvent-free adhesives.