Personalized Gram's Little Monkey Grandchild Infant Romper. Gram's Little Monkey Infant Romper - Black for a grandson or granddaughter has cute monkey swinging from a branch in the jungle. 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)