Hi, I have a combination of problems that make it necessary for me to always use a cushion. Flat butts run in my family and then I have this autoimmune disease that took away the little bit if muscle I had in that area. I use one of those cushions designed for those with hemoroids. I even took it with me when I worked at the election the last two times. One of the the Judges that relieved us periodically was always eager to use my chair and my cushion. I even stocked my car trunk with the blowup round cushions should I need one when I am out. I can only stand to sit on a hard surface for a few minutes. I can't even ride my exercise bike as it is like sitting on bone. No bleachers for me.