Women’s Cosita Buena Ruched-Back Bikini Bottom. This bottom is so pretty and can go with any top…., April 10, 2017 at 04:34AM Women’s Cosita Buena Ruched-Back Bikini Bottom. This bottom is so pretty and can go with any top. Also covers enough on the rear as well. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)