Personalized Biometrician (Worlds Best) Long Sleeve T-Shirt. Fun gift for the World's Best Biometrician has sports style logo on a Long Sleeve T-Shirt - Charcoal. 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