Adjust the system to support high, medium and flat arches, fit any foot width. Made to add strength where you need it most. This 3/4 length support is design to be versatile and be worn in many types of shoes from a work shoe, flat, heal or athletic shoe. The casual insoles are designed to offer heal strike impact reduction, adjustable support and increased energy with each step. No matter how long your day is or how hard you work, you'll be standing in comfort.