Insoles are used primarily for comfort, pain relief. Two of the main benefits are cushioning and support. Cushioning offers great relief by absorbing the shock that makes your feet tender or extremely painful. Support helps in improving the balance and alignment of the foot. Some insoles provide cushioning and support for those with high arches or dropped arches.  often constructed of plastic depending on the purpose. Now that you have purchased one insole after another, including expensive orthotics, consider Spenco insoles that will suit almost every need.  Spenco insoles are often suggested by physicians for planter fasciitis, overpronation and supination. These insoles with their various types of cushioning assist with correct foot alignment, as well as in flexibility. For more information on Spenco insoles and other Spenco products, contact orthoticshop.com.