One of the booths I stopped at was Superior Enclosures. Relatively new to the market, the company has lined up their manufacturing and are ready to roll out their product in 2016.
The product is designed to be easier to use compared to enclosures that require rolling up and/or zipping up the sides. The Superior Enclosures work by sliding a curtain back and forth. In the closed position the enclosure is held closed by a strong magnetic strip that runs vertically along the front edge of the enclosure curtain. In the open position the enclosure curtain is held in position by button type fastener at the top and a tie-down type fastener on the bottom. Conveniently, the enclosure can be opened, closed and fastened while the person is seated in the golf car rather than stepping out of the vehicle and getting wet in the process. Another advantage is that the vertical curtain design allows water to drain down onto the ground rather than being rolled up into the enclosure. The fabric is also mold resistant. I tried out the enclosure and found the door curtains slid into place easily, the magnet held it in place strongly and you could open and fasten the curtains while staying seated.
The Encompass Golf Cart Enclosure takes a different approach, using a semi-rigid door made of fabric laid over an aluminum frame. The doors open and close like a typical door but also have a clear vinyl window that can be zippered open or closed. The clear rear panel can be rolled up. The doors can easily be removed in under a minute.