Officially Licensed Dr. Seuss Cat In The Hat boys kids shirt. The Cat In The Hat is the main character in a series of books written by Dr. Seuss, The various stories are written for children. The Cat can show up with his companions Thing One and Thing Two and turn any normal situation into chaos. However, the Cat always seems to get things fixed just before the adults show up. The tee features a classic distressed character design on the front. This short sleeve top has a crew neck and is made of 100% Cotton. It is a tagless shirt. The t-shirt has the wash instructions printed on the inside of the collar. Never too early to teach children the joy of reading and the imagination opportunities that can come with great characters like the Cat In The Hat.