“12 Valve Cummins”
This one’s for the 12-valve diehards — the ones who know timing, fuel, and boost are all you need. Printed on our toughest tee, this shirt holds up like the block it represents. Thick, durable cotton with a soft hand feel, it’s pre-washed for that broken-in look and built to ride through whatever the day throws your way. Mechanical by nature. Legendary by choice.
Fits true to size with a relaxed cut. If you’re between sizes or want a roomier fit, size up.
| Size | Chest Width | Body Length | Fits Like… |
|---|---|---|---|
| S | 18–19″ | 27–28″ | Standard Fit (Slim) |
| M | 20–21″ | 28–29″ | Relaxed Fit |
| L | 22–23″ | 29–30″ | Easy Fit, Layer-Ready |
| XL | 24–25″ | 30–31″ | Oversized or Broad Chest |
| 2XL | 26–27″ | 31–32″ | Full Cut, Max Comfort |
| 3XL | 28–29″ | 32–33″ | Loose Fit, Big Guy Ready |
