吊带泳衣（英语：Sling swimsuit），是一种由布料制成靠颈部支撑的单件泳衣。在实际中，吊带泳衣会尽可能的小，甚至更短，覆盖范围与比基尼泳装相似。吊带泳衣也有各种各样的名字，包括“吊杆比基尼”，“吊带比基尼”，“吊带丁字裤”，“弹弓泳装”或“弹弓”。该泳衣的命名方式是因为泳衣有类似弹弓的Y形框架。它有时会被认为是比基尼的变体。当设计给男性穿戴时，通常被称为“mankini”。

The sling swimsuit is a one-piece swimsuit which is supported by fabric at the neck. In practice, sling swimsuits provide as little, or even less, coverage (or as much exposure) as a bikini. Monokini types also exist. The sling swimsuit is also known by a variety of names including "suspender bikini", "sling bikini", "suspender thong", "slingshot swimsuit" or just "slingshot". It is so named because of its resemblance to the Y-shape frame of a slingshot. It is sometimes listed as a bikini variant. When designed for or worn by a man, it is often called a "mankini".