Personalized Kids Future Librarian Youth T-Shirt. Future Librarian design for kids in green and black comes on a Youth T-Shirt - White that makes a great gift for library lovers. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.