We have a gantry/goalposts on the stern and the bimini folds back against it for stowage with a zip on cover.

Opened up in 'sun' mode the bimini zips to the front of a canvas cover on the gantry which gives shade to the wheel position, our boat is aft cockpit, and straps tension the bimini frame forward taken down to the toerails. It can be used in this position under sail quite well. If needs be at anchor we have additional white 'aertex' type side shields that zip in to deal with low sun whilst not impeding airflow, these are half height and tie out to the guard rails. Still in 'sun' mode we can zip in an extension that zips again onto the sprayhood to fill the gap and our sprayhood has a zipped centre window that can be rolled up for our 'aircon'.

In wet or cold weather mode we have zip in sides and rear panels with windows to enclose the entire cockpit. In this format there are corner panels that are rolled away in bimini mode but come down to the cockpit aft corners to give support and tension, the sade and rear panels zip onto these as well as the bimini sides. We can have all 3 panels in place or just one side or one side and rear depending on wind direction mainly or if it is raining.

Ours was made by Quay Sails in Poole who adapted it an existing bimini frame and sprayhood but all parts were re-covered.

I only have a picture of it in full cover format but it is used most times we are on board and is used as a bimini very frequently even in the UK. In the picture, the roll away corner 'posts' are in place as are the sides and the connection to the sprayhood but the rear panel with a picture window is not in place.