Personalized Coffee Jittery White Text Youth T-Shirt. Coffee in a jittery text is a funny beverage design for birthdays and holidays for java drinkers who can never have too much coffee. 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.