Sleeveless shirt with a slight scoopneck. Offers a lightweight underlayer that doesn't show beneath plackets or sleeves.
Short-sleeved undershirt with a V-shaped neckline. Provides an unseen layer beneath plackets, as well as an additional barrier under arms.
Short-sleeved undershirt with a classic crew neckline. Prevents rubbing against your neck for button-down shirts, or peeks slightly over the placket for more casual looks.
Tees with this style fit closer to the torso, preventing excess bulk when layering.