Personalized Light Green Awareness Owl Long Sleeve T-Shirt. Light Green Awareness Ribbon Owl Long Sleeve T-Shirt - White to show support for Celiac disease, STD and HPV. Add a personalized message using the designer tool when you order. 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