Personalized Hero Uncle Toddler Long Sleeve T-Shirt. My uncle is a hero! Comic book theme t shirt for a nephew and niece to wear on Father's Day, or any day. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.