Personalized Celiac Disease Awareness Month Ribbon bird Long Sleeve T-Shirt. Celiac Disease Awareness Bird and Light Green Ribbon Long Sleeve T-Shirt - White for those with gluten allergy on a support walk gear item. 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