Personalized 1st Birthday Cupcake Monster Long Sleeve Creeper. 1st Birthday Cupcake Monster! A little chocolate cupcake monster celebrates its first birthday. Cute birthday gift for the one year old! For chillier weather, dress baby in this soft long sleeve creeper in a great fitting 1x1 baby rib. 5.0 oz., 100% combed ringspun cotton, 1x1 baby rib. White is sewn with 100% cotton thread, Flatlock seams, Double-needle stitched rib binding on neck, shoulders, sleeves and leg openings,Reinforced three-snap closure on binding.