Long time sitting, especially with an unsupported pelvis, can cause tons of discomfort. It may result in lower back pain, fatigue, improper sitting posture, and even poor blood circulation. The Dual Comfort Cushion balances the pelvis and relieves pressure on the tailbone, hips, and spine. It can turn any chair into an ergonomic, posture correcting and pain-relieving seat. Filled with memory foam.