Scientifically designed to relieve and prevent back pain, numb buttocks and other discomforts associated with sitting by: suspending the tailbone (coccyx) in the air which reduces the pressure on and within the lower spinal discs; tipping the pelvis forward to help restore the spine's natural lumbar curve. Providing excellent seating comfort. The cut-out section of the cushion allows comfort and relief of pain to other areas sensitive to sitting.