The Tush Cush is designed to relieve and prevent back pain, numb buttocks and other discomforts associated with sitting. Cutout section suspends your tailbone reducing pressure on your lower lumbar discs. Wedge shape tilts your pelvis forward to restore your spine’s natural lumbar lordotic curve. High-resilient polyurethane foam won’t flatten with use. Zippered velour cover is machine washable. Includes fabric handle for easy carrying. For individuals weighing over 200 lbs, the Firm Tush-Cush is recommended.