These are pretty pink dungarees powdered with an elastic waist for more support. 
This dungarees plays the retro card thoroughly with a body collar, it's charming. 
The straps have small ruffles for even more poetry for the little girls and are maintained in the back by two small mother of pearl buttons.
You can pair these overalls with a lace collar bodysuit.
Size advice: this model is small, do not hesitate to take a size above.