An outfit with a high-waist style or bonded by something(like [[underbust]], [[obi]]...) around below the bust, and baring the side skin above the waistline.(Also the area around "Serratus anterior muscle":https://en.wikipedia.org/wiki/Serratus_anterior_muscle )
It also can be a [[backless outfit]], and often expose the [[sideboob]] or [[armpits]].

h4. See also

* [[armpit cutout]]
* [[low-cut armhole]]
* [[side cutout]]
* [[sideless outfit]]