The Kardashian-Jenners' latest mission in St. Barts? Making us all one-piece converts, apparently. When Khloé and Kendall snapped pictures [1] of their vacation looks Aug. 19, they made a pretty strong case for ditching the bikini and showing off your curves in a sexy one-piece instead. They're not the only members of the family who are on the campaign, either. Kylie Jenner posed poolside in a side-baring one-piece and before that borrowed her mom's old suit [2], further proving the throwback style is having a moment right now. Just read on to see Kylie, Kendall, and Khloé flaunt their curves — then shop your own.

Khloé and Kendall showed off their curves in their respective suits.

While Kylie revealed a little more in her side-slit one-piece poolside.