Personalized Best Mom Fish Long Sleeve T-Shirt. Long Sleeve T-Shirt - White with cute and colorful school of fish says WORLD'S BEST MOM. Mother fish is leading the way. Perfect gift for Mother's Day. 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