Personalized Sailing 100 Days of School Long Sleeve Creeper. Funny 100 Days of School Long Sleeve Creeper - Black for pre-K, preschool, kindergarten and grade school teachers with sailboat and stars. My Kids Sailed Through 100 Days of School. Celebrate your students being 100 days smarter. 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.