When the outer side of the chest is visible through a gap in the clothing being worn by the subject, or if only the side of the chest is visible with, for example [[from behind]] angles (post #4805923, post #6728910, post #5224430).

If the nipples are visible, use [[nipple slip]] as well (post #4343645). 

Do not confuse with [[pectoral cleavage]].

h5. Related Tags

* [[presenting sidepec]]
* [[bare pectorals]]
* [[topless male]]
* [[pectoral cleavage]]
* [[tank top]]
* [[singlet]]
* [[sleeveless shirt]]
* [[sideboob]] female variant