“Built to spool. Born to pull.” Just like the 24-valve Cummins under your hood — this one’s built to run hard, last long, and never quit. This heavyweight tee is thick where it counts and soft where it matters, with a garment-dyed finish that feels broken-in from mile one. Whether you're wrenching, fueling up, or backing into a crowd with the turbo screaming, this shirt says what you're about — without needing to shout. Size Guide 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