Personalized Celiac Disease Awareness Ribbon Long Sleeve T-Shirt. Celiac Disease Awareness ribbon Long Sleeve T-Shirt - Athletic Heather for a support walk or event shares the message about gluten allergy. 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