Zara size medium. Straps are NOT adjustable. Cute ruffle on one side. Snaps at bottom, looks almost new. Thick material with a small amount of stretch. I am a large but usually buy bodysuits in medium if they have stretch because I am short waisted and size large is usually too long for me. This one did not stretch enough. So ture to size for a medium. Zips at side also. In excellent condition.