My ds is about 5'6". He out grew his size 18 suit pants (it is tight around the hips/tush). I went a size up but the waist is too big and the hips still tight. I tried husky, still no good. Any ideas where to find suits (or brands) that might fit him -- normal size waist, but wide hips and needs room in the seat of the pants. Most of the pants I have tried have no room to let out the seat. Any ideas are welcome.