What stands out about the small is the way it follows your waistline.
3 6 Pack Mens 100% Cotton Tank Top A-Shirt Wife Beater Undershirt Workout Shirt
This is a true men’s shirt, with armholes that don’t ride up when you lift.
Papi 3-Pack Pure Premium Cotton Modern Square Neck Tank Style,Choose Color-Size
You will find the fabric is medium weight, a favorite among men for versatility.
Multi-Color Tie Dye Racerback Tank Top Sleeveless T-Shirt Adult XS -XXL Cotton
A nice touch is that it’s sized for unisex adults, with a relaxed collar.
Marvel Deadpool Basketball Jersey Men’s Dead Baller Athletic Gym Tank Top
The small size works well for a sleek look under a open shirt.