Personalized Book Monster Girl Long Sleeve Creeper. Long Sleeve Creeper - Mauve with funny green girl monster wearing glasses, reading a book says BOOK MONSTER. Cute back to school gift for book worms, book nerds and book lovers. 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.