This waffle cushion is good for anyone with back issues. I got this for my computer chair where I spend a lot of time. It is made with vinyl material and comes with a pump to inflate it. Deflation is as easy as Inflation. Just pinch the mouth of the valve and squeeze the cushion to let air out quickly.
You can adjust the density of the cushion. Some like it fluffy and some like it with very little air as it is more comfortable. you can inflate to different levels to see which is best suited for you.
Also since it is easily inflated and deflated storing or carrying it around is super easy and you can just roll or fold it to store
The size is good and will adjust to any chair.
There are some issues I face with it though. It is mentioned it is made of vinyl material,however it feels like and smells like plastic and I start slipping from the seat on it after a while. Also I don’t think it will be appropriate material for a cushion during summer time.