The Ridge positioning cushion by the Comfort Company features two layers of foam, one being memory foam, to increase surface area and comfort. The tapered leg adductors increase in width near the back of the cushion to give support to the greater trochanter shelves. The cushion provides pelvic, lateral and medial thigh supports to provide optimal positioning, and the aggressive medial thigh separator promotes proper leg alignment. Coccyx relief area unloads bony prominences for optimum comfort. Available in Stretch-Air, or Comfort-Tek fabric.