Personalized Trombonist Worlds Best Women's Plus Size T-Shirt. Fun trombone instrument silhouette with World's Best Trombonist music quote comes on a Women's Plus Size T-Shirt - Vintage Red gift for the trombone player in band or marching band. Add a personalized name for a custom gift. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)