Personalized Mouse Long Sleeve Creeper. A great finder, a great helper, and a great friend. Mouse Long Sleeve Creeper - White from "Dog and Mouse" by Michelle Nelson-Schmidt wants to help, not because she has to, but because she wants to. 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.