Personalized Allergist Worlds Best T-Shirt. Allergist T-Shirt - Azalea gift. Give your favorite Allergist a fun sports look Worlds Best Violin gift. Add a personalized name for a custom occupation gift. Great gift idea for Allergist. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.