Personalized Some Don't Quite Fit So Neatly Into A Category Or Definition Youth T-Shirt. Defy expectation and definitions with Some Don't Quite Fit So Neatly Into A Category Or Definition Youth T-Shirt - Vintage Green from the children's book "Bob is a Unicorn" by Michelle Nelson-Schmidt. 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.