Footwear inserts are an important part of keeping your feet comfortable and healthy. The two most common types of inserts are shoetrees and ARCH supports. Shoetrees are wooden or plastic forms that are inserted into the toe of a shoe to help maintain its shape and absorb moisture. ARCH supports are designed to provide cushioning and support for the ARCH of the foot, helping to reduce pain and fatigue. Both of these inserts can be purchased in a variety of sizes and materials to suit individual needs.