Personalized Baby It's Cold Outside Long Sleeve T-Shirt. Baby it's cold outside! This cute holiday snowman is perfect for the season. Merry Christmas and Happy holidays! 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