Personalized Zebra 1st Birthday Adult Sweatshirt. A cute zebra with blue stripes stands next to a striped 1. Adorable 1st birthday gift for the one year old! 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.