Medesign Backfriend Posture Support for Chairs and Car Seats, Double-Padded Seat, Black

This item is painfully pricey, but truly a friend to your back; I’ve been using it for years now and it’s built to last—the only thing that broke are the connectors, but they gave me a spare (and honestly, you could use zipties in a pinch). Basically, the Backfriend consists of two tough, ergonomically molded pieces of plastic covered by a cushion. The pieces are rigid enough that I can even use them in my butterfly chair and I’m still well supported (even though parts of the Backfriend are not). I use it in my car most of the time (it’s well endorsed by truck drivers) but it really shines when I go to a festival, concert, sporting event, seminar or convention. Remember those butt-buster chairs you had to squirm around in the last time you went to a seminar? No more! Just plop your Backfriend in your seat and you’ll be the envy of your uncomfortable compatriots.It doesn’t fold entirely flat, because it’s molded, but it ends up being about max 3 inches thick when folded, has a carry handle and a velcro strap so it doesn’t unfold mid-carry, and it’s pretty light.I know the price is high, but it will serve you well; just compare it to what you pay a chiropractor and it makes a lot more economic sense. Give it a try!