Dress your baby boy / baby girl with this 'Happy Birthday day daddy' onesie for your husband's birthday. Great birthday present for dads. Premium quality, short sleeve baby onesie. 100% combed-cotton (preshrunk,) machine washable, cozy one-piece for your baby! overlapping expandable shoulders and three-snap closure at the bottom to make changing as smooth and easy as possible. Available in a wide variety of sizes and colors - choose the size and color options from the drop-down list. If you would like more room please order a size up.