Personalized 1st Birthday Puppy Infant Romper. I'm one cute puppy. Celebrate your baby's first birthday with this adorable little doggie. Happy 1st birthday one-year-old! Meet your new favorite outfit! Keep dressing simple with this one piece, lap shoulder t-romper. Super soft and perfect for baby's sensitive skin. 5.5 oz. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40; Heather is 90/10 combed ringspun cotton/polyester)