Most camp chairs I find to be uncomfortable for long periods - they round my shoulders forward. For years I have used a Kelsyus Backpack Chair.
I got the mesh version to replace the original a couple years ago and it broke on the first trip - reading the reviews online it sounds like quality control was an issue. My older one is beat up but still completely useable and very comfortable. For a light folding chair this is still my first option.
Recently I was looking for a new camp chair and sat in a REI Comfort LTG Armchair
- super comfy - I almost took a nap in the store - and it includes a moveable pillow for either back/lumber support or it slides up to be used as a pillow. Mesh down the center for quicker dry time. It folds to a somewhat flat 31x25 and it's heavier at 12 lbs. At $60 it's not cheap. But I figure it will rig in my gear pile easy enough and it seems durable - time will tell. Besides REI stands behind stuff really well so if it breaks it goes back and I get something different.