Personalized Let's Go Exploring with Cordelia Youth T-Shirt. Adventure awaits with Lets Go Exploring with Cordelia Youth T-Shirt - Heather, perfect for little explorerers and fans of the children's book "Cordelia" 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.