Yes, and without losing any of the comfort. Most of ours come with a detachable belt, so you can wear the piece loose and flowing or belted to define the waist, and change your mind on the day. Others are made with elastic across the back and a belt attached at the front, which shapes the waist on its own with nothing to fasten or adjust. Either way nothing grips and nothing restricts you, which is the whole point of a kaftan.