Maytom is correct - I bought the biggest panel blind I could find.
Now let's talk chairs - Youcan see the chair I have as I am an old guy is a low steel framed (busted the 1st Aluminum I tried - steel is the way to go) beach chair I just painted flat black. Using this and a Stearns boat cushion made me comfortable for those long sits at times.....
But the Stearns boat cushion has one other feature.
I secured an old gym bag strap between the cushion handles - this allows me to sling it over my shoulder quickly to take off after a bird if needed.
or I have this chair and I think this is the one Maytom was talking about - it has fixed legs as I did not care for the collaspable leg model.

JW