I want this. With the snap crotch. In adult size.
If you haven’t checked out Hatley, you should. They are a lot of fun. Most of my friends end up with one when they have a kid, I may or may not have a stash that I get one super-clearance at the end of the season for just such occasions.
As an aside, I threatened to get the one shown below at a gift shop when freezing on vacation last year. He said least sexy vacation clothing ever. So, I showed him bear naked and said I was going to get one for myself so I would be much sexier.