This donut cushion did the job nicely.
357680
After my wife delivered our baby, she needed something to sit on for a few weeks afterwards. This donut cushion did the job nicely.
2468331
I purchased for my wife that has a problem with her back while flying.  We just returned from a trip and she didn't complain a bit so I believe that the cushion works fine.
224053
Great cushion!  My wife liked it so well I had to order one for her.
1212719
I ordered this because my new car has a seat that is a bit too hard for my comfort.  I have tried other "wedge" seat cushion and "gel" seat cushions but they are all too thick which makes me sit too high.  This little bamboo cushion is just the right amount of cushioning to alleviate some of the firm feel of the seat bottom without elevating me too much.  I am not sure yet what the "breathable charcoal" part of the cushion is for but, so far, it seem to be the right amount of cushioning for what i need.  Also, the non-slip side of the cushion is nice - it actually stays put even when I slide out of the seat to get out of my car!  I'd say if you need just a little extra cushioning without too much bulk, this might be your answer but if you are looking for significant posture support and cushioning like wedge shaped cushions offer, this is probably not what you need.  This also would probably work well in hard chairs, stadium seats, etc.  I may order a second one to use at my computer desk.
2141257
I had a bruised coccyx, It was painful to sit.  This did the job.  Once I was finally able to sit without the cushion, my teenage son snatched it from me to use it in his computer chair.  I guess it has multiple uses.
2432756
This was a economical alternative to some of the more pricey seat cushions.  Inside the sections there is foam of some sort.  I used it on a motorcycle and rode 300+ miles.  It helped extend my riding range.
2136839
Hole could be bigger and the cushion bigger, but works well enough.
I received this in exchange for my honest review
3809804
We bought this cushion for the use of a 96 year old lady.  It is very helpful for a more enjoyable car ride.
2495148
This is a nice cushion, firm memory foam with a gel seat cover. I bought it because my damn desk chair at work slowly lowers over time, and every few days, I would need to use the hydraulic lever on the side to get it back up, but now with this cushion I can just leave it low and still be at the right height. I would have given it five stars, but when it arrived, it had a chunk out of the bottom when the foam was already mashed in and didn't "expand" to the normal shape. It doesn't really affect the seat, but just gives less support under my right thigh, no biggie.
382226
The Greendale Cushion Set for a corner nook table is a great way to make the seating more comfortable.  It also finishes the look of table set.  The cushions are well made, the fit is excellent, and the bottom is rubberized to keep them in place.  It was also the only supplier out of several  to have the floral pattern available.  I am extremely pleased with the purchase.
453540
For my kitchen chairs these cushions work very well. The color was as pictured and the amount of cushioning quite comfortable.  I was a little concerned when I read some of the reviews about the fit  and  as a result  measured my  chair seat before I placed the order.  Other similar cushions I found online were much pricier. I'm pleased with the quality and I like the Velcro ties which give them a more tailored look.
2364150
Yes the cushion arrived and I really like it. i've used it for only a couple of days and already feel better.
1556789
It's a decent seat cushion. It's hard to say how long it'll last before it flattens out, but it's inexpensive so I'm not too worried about it. It's working for now.
1394869
The fit is just about what I wanted.  After using it I found it helped cushion my seat after a good bike ride.  I would buy again.
4332520
The donut is a little firm for my taste, and when I mentioned it to the vendor, they immediately sent out another one. Their customer service gets five stars! The product could use a little modifying, however. There should be more give when you sit on it. Otherwise, it's well made, and the cover comes off for washing. Mostly this comes down to taste and the needs of your butt. :)
271218
I really relied on the recommendations to select this cushion, since there are so many similar products available. I've had the cushion now for about a week and use it on an office chair where I work on my computer. So far, the foam seems to hold up very well, something I was concerned about on lower-priced cushions. At about $30 and free Prime shipping, this was in the middle of pricing on these cushions and I can recommend it as a good product. The cover can be removed for washing. I suspect that over time, the foam will lose some of its shape, but I think that would be true of most of these type cushions.
3321996
This cushion is very comfortable. It has a good size. it's easy to clean. Fits perfectly to the office chair or car seat. It helps me reduced the back pain.