Physics T-Shirt Where can I find other physics designs? Expand or collapse section. In addition to physics designs, you can explore the marketplace for scientist, chemistry, and biology designs sold by independent artists. What material is this item made of? Expand or collapse section. 100% combed ringspun cotton. The perfect fabric for a graphic tee and the softest in the business. (Due to product availability, cotton type may vary for 2XL and 3XL sizes) Learn More » What USA ship methods…