What is the Cake Eater T-shirt made of?

The listing does not state a fabric blend or weight. Print-on-demand tees of this type are usually cotton or a cotton-polyester mix, but confirm with the seller before ordering.

No fit information is given. Treat it as a standard crew-neck tee and check the seller's measurements rather than assuming a slim or relaxed cut.

Will the print last through washing?

There is no durability information for this print. Wash inside out in cold water and skip the dryer to reduce cracking and fading on printed tees.

Is this an official band or brand shirt?

Nothing indicates an official license. It appears to be a marketplace graphic tee using the "Cake Eater" slogan, so expect a generic print rather than branded merchandise.