This soft, athletic-fit 60/40 cotton-poly blend firefighter T-shirt carries the Diesel X Discipline design front and center—a clean, classic design that speaks to the core of the job. Diesel is the raw power that moves the rig, discipline is the control that keeps it on course. Together, they’re unstoppable. Lightweight, breathable, and built for movement, this shirt is ready for station wear, firefighter training, or off-duty grind, built for those who fuel up and stay sharp.
