Personalized Structural Engineer Line Adult Sweatshirt. Structural Engineer with a decorative line sporting an I beam is a unique engineering gift design for engineers and college students at back to school, birthdays, holidays and graduation. 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.