Personalized Irish Princess Childs Cute Youth T-Shirt. Cute Irish Princess St. Patrick's Day design Youth T-Shirt - Kelly Green for girls has green shamrock clovers and sweet red haired girl wearing a crown. 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.