Yeah yeah - I know chairs and stools just don't fit the ethos of Ultralight hiking BUT I've just purchased an UL ~260gm collapsible hiking stool ($30) and wondered if others have also tried one?
Although its made (claimed) from aviation grade aluminium - I'm dubious as to it's durability. I wish it was about 5cm higher - it's suitable for sitting but not relaxing/reclining.
I have a quality Helinox ChairZero but the packed down size/weight is still 'biggish' and I would probably not take it again - except on 1 or 2 night hike.