Personalized Big Sister Comic Book Long Sleeve Creeper. Big Sister! Pow! Cool! A big sister is like a superhero, watching out for her little siblings. Cute gift for any big sis! 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.