This black t-shirt features a unique design that's perfect for truckers and gearheads. The shirt displays a detailed gear shift pattern, complete with 'High' and 'Low' settings, as well as numbered gears. The text 'WHAT PART OF DON'T YOU UNDERSTAND' accompanies the pattern. Made from comfortable fabric, this tee is great for casual wear, truck meets, or as a fun gift for the truck driver in your life. Show off your love for big rigs with this eye-catching graphic tee!