Personalized Farty Forty Adult Sweatshirt. You're farty! I mean forty. Happy birthday, you old fart. Funny gift for your favorite 40 year old's flatulent 40th bday. 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.