Clinician: Brian MulliganBy: Brian R. Mulligan, F.N.Z.S.P. (Hon), Dip. M.T. (Soft or Firm) At last a comfortable cushion that keeps the knees below the hips and makes the lumbar lordosis easier to maintain while sitting. The highest point of the cushion is placed under the ischial tuberosity instead of at the back of the chair. This placement allows more effective use of lumbar roll if additional back support is required. The cover of the cushion is light gray.