Lucky 13 Amped Spark Plug Black, Red and Gold short sleeve 100% Cotton t-shirt. This black t-shirt features a large back print in red of a spark plug shooting off bolts of electricity, with crossed pistons situated underneath it and the words "Grease Gas Glory - Blood Guts Speed" behind it in a red circle. The Lucky 13 logo is situated on front left chest. Available in sizes S-3X. Made in the USA.