Women’s Cosita Buena Ruched-Back Bikini Bottom. This bottom is so pretty and can go with any top…., June 28, 2017 at 10:35PM 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 Google+ (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)