Its a PawTy Blue Coverall 12-28M

Switch from coverall to footie in a flash—our RightFit™ Convertible Coverall is designed for ultimate convenience with magnetic closures that makes diaper changes and dressing easier. It features foldover, extendable cuffs for hands and feet, to adjust for added coziness indoors or outside when you can’t find those little socks at the bottom of your diaper bag. Our revolutionary RightFit™ fabric ensures it’s naturally flame resistant with a soft feel and a relaxed fit you won't find anywhere else.