This seat cushion is amazing!! i needed something to take on a plane but I'm going to use this seat for my office and the car too. It is really thick gel. It is a little heavy but it is portable and folds up.I got this after sitting on hard surfaces became a major problem after a stroke. I use it in restaurants and recently on a 90 minute flight. So far it has given me enough relief in those circumstances to declare that it works.I bought this for a red eye flight across the country. My tailbone always hurts after sitting on a plane seat for too long, especially if I’m trying to sleep and not changing positions constantly. While it does provide some cushion and probably delayed the onset of pain, it did not abate it for more than half the flight. Pros- easy to carry with handles, non-slip on seatI have a bad back… I use a cushion when driving so I looked for one that was easy to carry on the plane. This one folded up and fit in my carry on. I placed in the seat and it supports back and hips. I also used when we arrived at our destinations for the rental car. Works really well.Versatile for uses other than sciatic pain relief when sitting. In my case, I had ankle joint replacement surgery and couldn't bear any weight on my foot. Since crutches and knee scooters weren't practical inside my house, I used a rolling stool to get around and when showering, a hard plastic shower chair. Both offered zero comfort for my knee, causing severe bruising to the knee cap. But the gel pads provided much needed relief and I found the material easy to clean and air dry. This product could easily be used by those kneel when gardening or by those who do home repair that requires kneeling on the floor.I use it as a seating cushion and back support in-one. It gives me the extra height I need to adjust better than the standard seat adjustments. It's also light weight, folds in two, and easy to transport.Very comfortablePurchased this for an 18hr flight I have coming up. Loved that it folded, adjusted & could be carried on its own easily. Unfortunately it feels too firm just from trying it at home, so it won’t do. I was disappointed that I have to pay for the return shipping as well. Had I known that, I probably wouldn’t have given the product a try.I have spent years looking for this. Being a writer I spend a lot of time sitting at the computer, then getting up with a numb backside and struggling to walk because of Coccydynia. The bottom of my spine just goes numb. I had given up trying to find something and carted a household cushion with me when I went out, pushed into a cloth bag so I just sat on the bag. Looked real elegant if I was going somewhere special. I'd tried special cushions before but always found them too hard. Then a friend asked me if I'd tried a gel cushion. I don't think gel was invented when I had mine. So I turned to theAmazon page and had a look. I was very sceptical and gave up, seeing the pounds just being wasted. But I went back the next day. I was getting to the point of giving up again when I saw the Sojoy iGelComfort Seat Cushion! It was Gel and Memory Foam. But, what swung it, was it folded in two and had its own handle to carry it, and looks like a little handbag. I sent the order. It arrived very quickly and I could not believe it when I first sat on it. I couldn't really feel it. Then I got up and walked without having to grab the back of a chair to hold me up while I gained movement. This cushion has changed my life. My only regret is that I didn't find it several years ago. A definite five star purchase I would recommend to anyone with a spinal problem.What's not to like about this. I have just recently flown to New Zealand, on the second part of the flight, I had the pleasure of sitting next to American gentleman who produced what he called a butt gel cushion. When we arrived in New Zealand he informed me he had tHe best sleep as his butt was so comfortable.........I was straight on to a Amazon and ordered my very own butt gel pad......oh hell yes he was right. It is at the moment in Cuba lent it to my friend, who will buy one when she gets back well worth the money.Sitting after prostate cancer radiotherapy, plus a catheter, was painful, requiring constant painkillers. This seat cushion has been a real help. The gap between the two pads allows me to take pressure off the catheter route, so that it does not press on the still tender prostate. I have greatly reduced my painkillers during the day, and sit comfortably for much longer. Nor do I get the 2 minutes of very strong pain when standing up after sitting for a while. I am now able to take it into a car, as a passenger, and have trips out to get fresh air, and can use it on various chairs which was previously painful. I recommend it whole heartedly for men in a similar situation. Delivery was quick and efficient, and it was well packaged. I now have two, to help with the constant moving it around. Thank you.Plus points:- Portable- Can adjust width- LightweightNegative- too firm, and did not provide me with supportI love the fact that this pillow is portable and folds in half. It is very easy to travel with through airports and on the plane. Unfortunately, it was too firm for me and didn't provide any support or relief from long periods of sitting on planes. If you like very firm seats this pillow is for you. If not, look elsewhere.Having flown (economy) to New Zealand last year and suffered a painful numb bum, I was on the look out for some help.I came across this on Amazon and bought itI test on a short European flight and it felt good, so took it on a 12 hour economy flight to Vietnam. It was so good and really made the seating very comfortableI also use on my office chair at home and love itHighly recommended