When the stomach is partially exposed by clothing.
Use this tag when there are regular clothes above (e.g. a crop top) and below (e.g. pants) the stomach, but the stomach is bare or visible beneath see-through clothing. The clothing over and above must not be underwear or a bikini.
Don't use this tag if the character is topless, bottomless, nude, or wearing underwear only or a bikini only. It may be used for underwear worn as outerwear, such as for sports bras, camisoles or tank tops worn with panties, or other similar outfits.