Personalized 4th Birthday Shark Party 4 Year Old Pirate Youth Sweatshirt. Funny shark wears a pirate hat on this 4th birthday design for kids who love sharks and pirates This youth crewneck sweatshirt delivers soft comfort, dependable warmth, and everyday durability for active kids. Made with a smooth fleece interior and a classic ribbed collar, cuffs, and bottom band, it provides a comfortable fit that holds up to school days, sports, layering, and relaxed weekend wear. The clean crewneck style makes it easy to pair with any outfit, while the sturdy construction helps the sweatshirt maintain its shape through repeated washing. Perfect for boys and girls alike, it is a reliable wardrobe staple for cooler weather or all-season comfort.