I like these back support pads a lot... huge difference.... I even use one on living room sofa. Big big help "Amazon.com: Everlasting Comfort Lumbar Support Pillow for Office Chair - Pure Memory Foam Back Cushion for Car (Black): Health & Personal Care"
yes that what this chair do, u can basically put it down 170 degrees and virtually be laying down to rest your back and alleviate the pressure i don't understand what's confusing you, you never seen such chairs?
No because if you put it down 170 degrees that means you would be leaned back so far your head would be touching your feet. You mean 90 degrees from sitting up would be laying down.
you lost me somewhere, but yes LEAN BACK wards to where your leaning AWAY from your feet and almost laying down, i hope that makes sense, look at the pics in the link, any ways, good for your back