My husband much stomach pain, and the elastic in the fleece pants that he previously wore caused him additional pressure and discomfort.  These "onesies" eliminate this problem.  The only downside was that the feet weren't long enough for his size 14 feet, so we cut them off.  He can now wear them with socks, and even wears them under his heavy coverall when outside for an additional layer of warmth.  This is the second of these Big Feet pajamas that I have bought for him.