You will find the regular fit keeps the shirt from looking too formal or too sloppy.
Genuine Vintage Salvage Brand T Shirt “Shogun” Charcoal V51T425 Size XXL
A nice touch is the regular cut, which gives you room to move without extra fabric.
Champion T-Shirt Classic Cotton Blank Short Sleeve Black
This shirt uses a regular fit, so the waistline sits naturally without pulling.
Champion T525/T425 Short Sleeve, S-XL
A nice detail is the tagless collar, which men often prefer for comfort.
Short Sleeve Champion T-Shirt T425
You will notice the sleeves are a better length for men who want full coverage.