![1girl ass beach beach_towel bikini black_bikini black_hair breasts commentary_request craft_essence day fate/grand_order fate_(series) floral_print flower hair_bun hair_flower hair_ornament hair_ribbon katsushika_hokusai_(fate) medium_breasts mitsumi_misato ocean octopus paintbrush painting_summer palm_tree purple_eyes ribbon shikigami short_hair strapless strapless_bikini swimsuit tokitarou_(fate) towel tree underboob wrist_ribbon rating:s score:24 post #3222943](/cdn_image/preview/f4/f6/f4f6365dcf3b2f84545fb3a417c8df59.jpg)
A bikini (top) that lacks any shoulder straps or halternecks, instead relying on the tightness of the fabric to keep it in place, similarly to a tubetop. Most bandeaus (post #3514676, post #3527890, post #3508662) and eyepatch bikinis (post #3457055, post #3295380) are examples of strapless bikinis.
This tag implicates bikini and strapless (learn more).