Personalized Trombonist Worlds Best Long Sleeve Creeper. Fun trombone instrument silhouette with World's Best Trombonist music quote comes on a Long Sleeve Creeper - Green and Red gift for the trombone player in band or marching band. Add a personalized name for a custom 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.