Personalized What If It's the Best Summer Yet? Long Sleeve Creeper. Make every summer the "best summer" with What If It's the Best Summer Yet? Long Sleeve Creeper - Light Blue, featuring Jonathan James from "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt. 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.