Personalized Royal Trombone Teacher Long Sleeve T-Shirt. Trombone teacher text wearing a crown and a trombone drawing is a humorous design for your trombone teacher at back to school and graduation. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL