Personalized Sassy Since Birth Adult Sweatshirt. Sassy since birth apparel and gifts has beautiful and playful elements such as owl with boots, bird, and quirky small critters. Click on the tabs to choose the product that you wish this design to be printed on. 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.