Nascar Thunder Ball Cap Snapback Hat Checkered Flag Black Blue The Nascar Thunder Ball Cap Snapback Hat by Checkered Flag is the perfect accessory for any NASCAR fan. This black hat features the signature checkered flag design and is adjustable to fit comfortably. Show your support for Nascar Thunder with this stylish and high-quality hat, perfect for any auto racing enthusiast. Made in the Dominican Republic, this hat is a must-have for male fans of the sport.