Personalized Future Trombone Player Music Women's V-Neck T-Shirt. Trombone Women's V-Neck T-Shirt - Kelly Green musical quote gift says when I grow up I wanna be a trombone player. 5.0 oz., 100% pre-shrunk cotton Athletic Heather is 90/10 cotton/polyester 1x1 rib collar with mitered v-neck Shoulder-to-shoulder taping Ladies' fit