Personalized My Daddy Runs Half Marathon Toddler Long Sleeve T-Shirt. Cute half marathon running outfit for son or daughter Toddler Long Sleeve Tee - Charcoal with my Daddy runs 13.1 quote 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.