If what you need is more than a cushion, then you might consider upgrading to an ergonomic seat cushion. Best back support & coccyx pillow tailbone cushion. Two in one. Not only ergonomically designed by alleviating pressure on the coccyx/tailbone and relieving Sciatic Nerve Pain, but also relieves large areas of back pain, including lower back, middle back pain, muscle pain, arthritis, stiffness, and tension in the middle and lower back areas caused by stenosis.

Universal Fit for Any Chair: Ideal for working, driving, and traveling. Provides deep comfort on most hard surfaces including office desk chairs, car seats, kitchen chairs, airplanes, trains, and wheelchairs.