Personalized Heart Elements Adult Sweatshirt. A heart filled with Chemical Elements and their symbols is a unique chemistry design for students, teachers, chemists and chemical engineers. 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.