Personalized Hoppy You're My Grandpa Infant Romper. I'm hoppy you're my Grandpa cute frog Infant Romper - White for a grandchild makes a great Father's Day gift idea for a visit to a grandfather. 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)