Personalized Loyal and True Dog and Mouse Long Sleeve T-Shirt. Dog wanted a friend who was loyal and true, then along came Mouse, and Dog just knew. Loyal and True Dog and Mouse Long Sleeve T-Shirt - White, because sometimes the things we want most have been in front of us the whole time. 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