Personalized Baseball 1st Birthday Long Sleeve Creeper. Baseball league sports 1st birthday boy with baseball bats. Cute sports themed 1-year-old b-day baby party gifts. Happy Birthday 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.