This one is made for men, so the shoulders and chest have a roomier cut.
Rothco Military Tactical Solid Color Long Sleeve T-Shirt (Sizes: Small-2XL)
A nice detail is the regular fit’s armholes, which allow full range of motion.
Coyote Brown Official AR 670-1 US Army Solid T-Shirt (100% Cotton)
What makes this a men’s tee is the straight-cut bottom, no curve to worry about.
Rothco Mens Solid Color Athletic Fit Military-Type T-Shirt (Small-2XL)
A nice touch on the 2XL is the subtle side vents for extra airflow.
Rothco Mens Athletic Fit Solid Color MilitaryType T-Shirts Tee
What I like is the way it hangs on men, no weird bunching around the waist.