Personalized Stays In Preschool Youth T-Shirt. Youth T-Shirt - Kelly Green for back to school with colorful, funny saying and hand prints. WHAT HAPPENS IN PRESCHOOL STAYS IN PRESCHOOL. Perfect for kids and teachers! 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.