Personalized Bass Player Kids Future Long Sleeve T-Shirt. Future Bass Player Long Sleeve T-Shirt - Kelly Green for kids has colorful string bass music design. 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