Personalized Worlds Best Trombone Player Women's Plus Size T-Shirt. Cool trombone player gift has Worlds Best trombone saying in two tone sports style design and comes on this fun trombone Women's Plus Size T-Shirt - White gift for your trombonist in marching band or jazz groups. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)