I like that the round neck is neither too high nor too low on the chest.
Hanes Men’s White Crewneck T-Shirt 6-Pack Undershirt Tee TAGLESS FreshIQ Comfort
A nice touch is how Hanes pre-shrinks the fabric so your size stays the same.
6-12 Pack Men’s Tank Top 100% Cotton A-Shirt Wife Beater Undershirts Size S-4XL
You will appreciate the solid color for its versatility and timeless appeal.