Moderate Cushioning, Full Support. Powerstep's original orthotic shoe inserts design in a 3/4 length is versatile to fit in a variety of shoes. Bi-layer design with a firm but flexible support shell, built-in foot arch support and heel cradle for increased stability. VCT® cushioning in an ultra-thin design. Ideal for all-day comfort and support in shoes with less depth at the toes. Ideal 3/4 length orthotic shoe inserts for preventing and alleviating pain associated with plantar fasciitis, heel or arch pain and discomfort, mild pronation and sore/aching feet. SlimTech® 3/4 thin arch supports are available in seven sizes.