Personalized Daddys 1st Mate Sailing Sailboat Toddler Long Sleeve T-Shirt. sailing themed Daddys 1st mate slogan for boy or girl with colorful sailboat 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.