Human Anatomy T-Shirt Design Heart Graphic Diagram Men Women Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Great t-shirt to learn about the human heart with a colorfully illustrated posterior view diagram labeling the parts of the body's most important muscle and organ. Perfect gift for teachers, instructors, professors, science, laboratories, biology, chemistry, doctors, nurses, medical assistants, heart surgeons, cardiologists, and cardiology. Lightweight, Classic fit, Double-needle sleeve and bottom hem