I'm a size 16-18 on my bottom so what size would that be for Calvin Klein pyjamas?

Also what size would I be in mens bottoms? I've seen a really nice pair of mens track pants that are only in mens. And are Calvin Klein pyjamas big or wee made. Thanks!!|||I don't wear Calvin Klein but designers usually run small so I'd say to be safe go with at least an XL, depending on your butt. If your butt isn't large, a large'll work, so an 18, but if you're someone with a little more junk, get a size 20-22 to be safe. In mens, I'd say a 40 to a 42. measure your waist in inches and that'll give you the size. it depends on if you have hips. If you do, get a Large, if you don't have any hips, a medium should fit