Personalized Physician Assistant (Worlds Best) Long Sleeve T-Shirt. Cute gift for the World's Best Physician Assistant on a Long Sleeve T-Shirt - Charcoal. Perfect for a new P.A. or a retired physician assistant too. 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