Personalized Shut Up and Ride Toddler T-Shirt. Shut up and ride! A cyclist races along so fast that flames trail behind the bike. Great gift for biathletes, cyclists, or people who just love to ride a bike for fun! A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.