My daughter is going to end up inheriting about 10 assorted cushions--foam, gel, convoluted, 1", 2", 3"...maybe more than ten. I found a 3" one with gel in it that seems to work pretty well, but I need to get a foot stool that's the right height. If it's too low, the pressure on the backs of my legs on the edge of the chair bothers my muscles. But! If it's too high and my legs are "pushed up" too high, it bothers the muscles on the FRONT of my thighs. Some people are just never happy.