The forward three panels
of our bridge enclosure are Makrolon, I think 4 years old, pretty much look like new.
The two outboard
panels curve around the side. The center panel can be unzipped on three sides and "pinned" to our hardtop (and there's probably some way to do with with a bimini frame).
Actually, that front panel is zipped in on all 4 sides, but we rarely unzip the top to completely remove it. And actually, the two outboard
panels are also zipped on all 4 sides, removed, stored, cleaned, whatever. All structural zippers are reinforced with an overlap of hook-and-eye (e.g., Velcro), too.
Consider Tenara (Gore) thread, or equivalent.