Personalized Pink Mermaid 3rd Birthday Long Sleeve Creeper. A cute mermaid with pink hair and tail celebrates your little three year old's third birthday with her little fish friend. Adorable 3rd birthday gift. 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.