Personalized Red Heart Valentine Long Sleeve T-Shirt. I Heart Long Sleeve T-Shirt - White with the cute red heart design. An I love you gift, Valentine's Day sweetheart gift or heart gift for a friend. 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