Personalized Best Dads Have Mustaches Long Sleeve T-Shirt. Funny Long Sleeve T-Shirt - Pink with old time text and handlebar mustache. For fathers, daddies, grandpas, papas or granddads and the kids, moms and grandmas who love them. 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