Personalized Christmas Big Bro Announcement Brother Santa Adult Sweatshirt. I'm going to be a big bro cute Santa Claus bear Christmas announcement Adult Sweatshirt - Black for a little boy. Stay warm and stylish with this classic adult sweatshirt, perfect for everyday comfort. Crafted from soft, durable fabric, it features a relaxed fit for added coziness. Whether you’re lounging at home, running errands, or enjoying outdoor activities, this versatile sweatshirt is a wardrobe essential for any season.