It honestly looks like a diaper onesie combo. Imagine how when it gets wet it's going to sag in the back than it already does because of so much fabric bunched up there. Totally looks like she's got a full diaper on under it
Underarm Pads If you’ve got a dreaded interview coming up or something else that makes you a nervous wreck, don’t sweat it! Stick on these underarm pads to absorb sweat and odor (prevents embarrassing wet spots on your clothes, too).
These Life Hacks Will Get You Through This Disgustingly Hot Summer. Some of these can work for more than what is pictured. For example, the Vodka bottle. You could more than likely use that trick with any other beverage.