Arch Support generally refers to the part of the insole of the shoe that raises right at the level of the arch to provide support to the midfoot. Arch Support also refers to individual insole cups with a molded shape that fit the arch and are placed inside the shoe to help relieve foot or heel pain.
About Orthotic Shoes:
Orthotic Shoes are shoes that contain orthotics, which are removable orthopedic insoles that help cushion and stabilize the foot. Orthotic Shoes may also refer to items designed with additional room to insert Orthotics.