![1girl absurdres adjusting_hair armpits arms_up ass bangs black_swimsuit blunt_bangs blush bow braid breasts cleavage closed_mouth collarbone covered_navel eyebrows_visible_through_hair girls_frontline hair_ornament highleg highleg_swimsuit highres large_breasts long_hair looking_at_viewer o-ring o-ring_swimsuit one-piece_swimsuit ponytail purple_hair red_eyes sidelocks simple_background sitting solo swimsuit thigh_strap tigersaber v-shaped_eyebrows wa2000_(girls_frontline) white_background rating:s score:33 post #3552444](/cdn_image/preview/f6/13/f613529d6008cec539cc50ad99cb4fe8.jpg)
A one-piece swimsuit with o-ring(s) prominently displayed.
In the case of a bikini, or other clothing with separate top and bottom, use o-ring_top and o-ring_bottom where need. If both are present, o-ring bikini should suffice.
This tag implicates swimsuit and o-ring (learn more).