Personalized Big Brother Superhero Toddler Long Sleeve T-Shirt. Big Brother Superhero! The big brother looks out for his younger siblings, just like a true superhero should. Great gift for any super bro! 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.