Personalized My Grandpa Loves Me Superhero Toddler Long Sleeve T-Shirt. My grandpa is a superhero! Adorable tee for your little ones who love their grandpa. Great for Father's 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.