Personalized 4th Birthday Sailboat Toddler Sweatshirt. Sailboat with number 4 for your child's 4th Birthday comes on a party Toddler Sweatshirt - Chill gift. Keep your little one cozy and stylish with this soft and durable toddler sweatshirt. Designed for comfort and ease of movement, it features a classic fit with ribbed cuffs and hem for added warmth. Perfect for everyday wear, playtime, or chilly outings, this sweatshirt is made to withstand the adventures of an active toddler