Personalized Bike Stars Block Youth T-Shirt. Decorative bike text with stars and stripes against red yellow and blue blocks is a unique bicycling design for cyclistys at birthdays and holidays. 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.