Personalized 4th Birthday Shark Party 4 Year Old Pirate Toddler Sweatshirt. Funny shark wears a pirate hat on this 4th birthday design for kids who love sharks and pirates 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