Personalized Kids I'm Ready To Crush Pre-K Monster Truck Back To School Youth T-Shirt. Whether they are heading to their first day of school or participating in fun activities throughout the year, this design is sure to make them feel special and ready to tackle new challenges. 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.