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
Dresses like this are the best. They are light enough to wear in the warm weather but also look great with sweaters, leggings/tights, and boots in the cool fall weather! Casual dress outfit with long boyfriend cardigan and tights. Fall or winter fashion.