When you sit on a seat you have a choice. You can use a standard memory foam cushion which will mold to your body, a firm cushion which will hold you still`or the FoMI Premium Gel Cushion. The key factor why the FoMI Gel Cushion provides support are the multiple layers of gel and foam. The multiple layers allow you to retain your temperature and provides firm support. The gel bubbles can improve posture and allow for a full range of motion while sitting. If you sit for a long time this is the cushion for you.