Personalized 5th Birthday Cute Panda Bear Youth T-Shirt. Panda 5th Birthday Youth T-Shirt - Pacific Blue has funny fat panda bear with number five on its tummy. 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.