Here's a pic of "big" front shade on our Lagoon 400
It's made from Sunbrella with shock cord at attachment points. Works well in calm conditions but is good for 3 kts boat speed in windy weather
If we made it again, in hindsight we would use a mesh material instead of canvas
to reduce the wind effect. We can't leave it in place if we think the wind will exceed 15kts. Canvas
was used as the shade was thought to be useful as a rain catcher. In practice this has rarely worked; it takes too long to erect and so I'm wet and the rain has stopped by the time its in place. If not, the accompanying wind flaps the rain water
off the shade before it can be collected.
A smaller awning attached to cabin
roof front allows us to leave front saloon
hatches open in rain and also provides some shade. We use this awning much more than the big one.