Personalized Swimming Nut White Text Long Sleeve T-Shirt. Swimming Nut in white text with a funny acorn nut wearing goggles and flippers is a humorous swimming gift design for swimmers and divers during summer swim season and at back to school, birthdays and winter 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