Three types of bikini tops. One will require the header bar and door surrounds, minimal flapping but there is still some, these are a cable style bikini top that you can tighten down very firm. Feels like your in your jeep with a soft top on, but back exposed. Then you have bikinis without the headers or door surrounds, I heard a lot of complaints how bad they flap. Then you have something like a Spiderwebshade that won't stop you from getting wet, but will offer some shade protection. I got a bikini from my dealer, and until I got the Spiderwebshade I thought it was great, but once I put on the shade the bikini stayed in the garage the rest of the summer.