Shoe Doctor® Insta-Orthotics® alter the way your foot strikes the ground to improve biomechanical function. This provides relief, support and comfort to enable you to keep moving longer without pain or discomfort. About The Product * Improve Airflow for Cool Feet * Offer additional cushioning and comfort * Align your natural foot structure * Provide relief for your feet, legs and back * Trim for a perfect fit * Reduce imbalance in your bodily motion Insta-Orthotics® arch support works to align the natural structure of the foot. As you walk, run or move, they help to redirect and imbalance in your bodily motion - allowing your feet and body to work in the most efficient way. Available in Mens & Women's