Personalized Biological Engineer Line Toddler Sweatshirt. Biological engineer with a decorative line sporting an ant. A fun gift design for college students, research assistants and biological engineers at back to school, birthdays, holidays and graduation. Keep your little one cozy and stylish with this soft and durable toddler sweatshirt. Designed for comfort and ease of movement, it features a classic fit with ribbed cuffs and hem for added warmth. Perfect for everyday wear, playtime, or chilly outings, this sweatshirt is made to withstand the adventures of an active toddler