Personalized Economics Teacher (Worlds Best) Long Sleeve T-Shirt. Economics teacher Long Sleeve T-Shirt - Black gift. Great sports look logo in pink says worlds best Economics Teacher. 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