YOUFI Large Seat Cushion 4 Inch Thick Memory Foam for Office Chair, With Cooling Gel for Sciatica Coccyx Back Tailbone & Lower Back Pain Relief, Thicken Pillow 19 X 17.5 X 4 Inch

This is absolutely brilliant, really comfy if sitting on for hours, it goes back to the original firm shape when not sitting on it. Finally found my forever cushion, it beats all the others I have bought over time. Great value for money & fast delivery. The cushion moulds itself around your bottom and thighs, excellent buy.

This was a great purchase it is so comfortable, compared to others we tried this is excellent. My husband has terrible back pain and takes it out with him it's great because it has a handle combined into the cushion which makes it easy to transport. It was a bit on the expensive side compared to others but worth every penny.

The cushion is comfortable but I would have liked it to be a little softer. I also think it is a little on the expensive side.

I have chronic sciatica and have bought so many useless cushions.This one is spot on. It fits a PC chair perfectly and is like sitting in clouds. Had significantly less pain today and I've only been using the cushion for 2 hours.Excellent quality and well worth the price.

Not sure if it warrants the £50 price tag. Not sure if its better than others that I have had, time will tell.

From the description, and the many reviews from Vine reviewers, this seemed an ideal product for long term seating comfort on both office chair and settee. Unfortunately, it doesn't work well at all for me. I'm slim and average weight and build, with negligible excess 'padding', and I find that I sink into the cushion as the memory foam compresses. After no more than 5 to 10 minutes my hip bones have compressed the foam to a very firm layer about 3/4 of an inch thick and it feels solid and uncomfortable.On top of that the so called cooling gel is a thin layer which seems to have the opposite effect as it removes any breathability. Result: one very hot sweaty uncomfortable bottom even in the now cooler ambient temperatures.Pricing is frankly ludicrous for the resultant hot hard cushion and I simply can't recommend this item.At half the current price, and for people with more natural padding' it might just help in some cases!

I have had several of these type of cushions that have been OK to start with but have not worked for very long. This one is much different as it was worth spending the extra money. Several of the cushions have bee supplied by medical services but have not been anywhere near as good as this one.

Fits great in my wheelchair