curble Grand– Extra Wide Ergonomic Seat Support, Sit Straighter Without Effort, Passive Posture Trainer for Office, Home & Car (Black)

I bought my Curble 3 years ago. Ever since I have not taking it off my chair. I work in an office and it been the best investment I have done 100/100. My back pain definitely has gone away. My posture it better. It makes a difference. Price might seen high for a back support it worth your money. I would definitely buy the circle before buying an uncomfortable chair pillow. I would say I would want the pillow button to be a bit more cushion. It will save you money and some physical therapy would try it before going there.

A little bit hard(not so soft) to seat but very good for low back.

Let me say I have struggled with low back pain for years. When I sit in my office chair I always for some reason sit toward the front so my lower back doesn't have support. I decided to get the Curble. I originally ordered the Wider Curble and honestly it was very small that my behind didn't even fit on it. I sent it back and got the Grande Curble. It fits perfectly and has so much support on lower back. It has a little bit of cushion on the seat and back. It is made out of some type of heavy plastic but seems durable. I weigh 165 and am 5'8 and the height of the back support hits me mid back. It is very light weight so it can easily move to a different chair with you or take in the car. Even if you are a smaller person I would go ahead and get the Grande to have a little extra room. The shape of it makes your behind fit in it a certain way where you get the most support.

I have sciatic and lower back pain issues. I believe that my time sitting in desk chair contributes to it, as does time sitting in our “comfortable” upholstered chairs in front of the TV. I decided to find something that would support and correct my posture in all chairs. This item seemed to be the perfect solution. When I first sat in it I thought: Ok, a little uncomfortable but it definitely puts my posture in the correct position. I used it for a couple of days in every chair before giving up on it. I told my wife that it was just too uncomfortable digging into my upper back. She suggested I get a larger size. This IS the largest size, it’s sold as the Adult size and is even marked Grand. Intrigued, she - who has never complained of back issues - asked if she could try it. Bingo! She loves it! Very comfortable and she can’t wait to use it on an upcoming car trip. That’s the lesson here: The Curble posture seat works, but it’s sized for shorter people. I’m 6’2” and could not get comfortable with the upper portion digging into my back; my wife is 5’2” and it fits her perfectly. Go figure.

Great Back Support. Works best on hard surfaces. Doesn't always work in an office chair. Makes my butt hurt after about 6 hours

Good posture is always hard to maintain. This forces me to sit upright, and reduces some weird aches and pains.

This product had so much promise; but it fell short. I really like the idea and would carry this everywhere with me because my back ends up in knots at restaurants, in waiting rooms, classrooms, and other places where I do not have my own chair with me. However, it needs a few fixes. For background: 1. I have never been able to use lumbar support, because those supports lack support of the lower thoracic region and do nothing to correct the backward slant of most chair cushions, leaving the user leaning back into it, thus causing poor thoracic posture. 2. Full "ergonomic" cushions seem to be designed for 10-year olds or people without a behind, thus press into your pelvis region and behind (too low) and do nothing more than push you further away from the back cushion and do nothing to correct the backward slant of most chair cushions, again leaving the user with poor thoracic posture. 3. To make matters worse, even common task chairs and office chairs have these "too low" ergonomics that seem to have left out the fact that people do have pelvis regions and behinds that need space underneath the lumbar, so the ergonomics are all wrong. 4. I am between the average heights of a woman and a man, so average. 5. I currently sit all day and comfortably use an “old school” very aged and tattered task chair with no arms that is at a right angle with the seat back high enough to start just above my behind and end in the lower thoracic region. I wish I could take it everywhere with me. I wish I could find a new one just like it too! Even the same brand new ones cut corners now and have a lower seat back that jabs me in the behind/pelvis, thus has no support. I was super excited to find the Curble, which appeared to correct this issue in the images on the Amazon listing. Here are my thoughts after trying it: 1. When placed on a table or chair that has a flat seat cushion with no angle, it appears the Curble would support the back perfectly. However, when you sit it the entire Curble is curved, so it tips forward towards your front causing the back portion to tip forward too much and jab the user in the back. Instead of providing perfect upright posture I found I couldn’t sit all the way in the Curble and the top of the seat back without the cushion jabbed me painfully in the ribs because it was angled forward instead of upright. 2. Simply put, the user cannot sit properly at a 90-degree right angle. The Curble is too tight to fit into properly. It is an acute angle (less than 90 degrees). 3. Then I tried it on a seat cushion in a chair that is slightly angled backward, and it was jabbing me painfully in the back. I kept trying to push it back away from my lower rib and move my behind into the curved area with no success. Ultimately, it dislodged a rib and now the rib is stuck. It’s been 3 days, and I am still having rib pain on the right side that will require chiropractic care. 4. Thinking it might be better on a sofa or side chair that is soft and angled backward I gave that a try. While it did keep me more upright back wise, the whole Curble rolled backward into the chair and I had a hard time getting up out of the chair because I was crammed into the Curble at less than 90 degrees, rolled backward, and had the angle of the sofa to contend with. 5. Examining the Curble on a flat table surface, it looks like perfect support. The issue is that when you sit in it the whole unit tips forward. This can be evidenced by simply pressing on the front of the Curble as though you were sitting in it and watching it tip forward into a poor posture position as shown in the image I posted. Instead of upright, the back of the Curble slants forward. 6. I placed a wedge under the front of the seat which brought the back portion of the Curble to an upright position that would support the back, but it left the seat bottom portion angled back, which is hard to get in and out of and not good for the back. 7. I have a longer middle, so the back of the chair is a bit too low. It needs at least another inch in height, preferably 1-1/2 – 2” to fully support my back. 8. The padding on the Curble is minimal. It needs padding covering the edges on the back support portion, so they don’t jab into you. 9. The plastic is pretty hard and unforgiving, making it a solid item. I thought, for the price, that the plastic was sold. 10. The price, overall, I felt was high. Yes, the plastic is sturdy & solid. But, the padding lacks. Overall, I think the Curble would be best off with a flat bottom and the back portion sat a right angle to it with more padding covering the edges. Better yet would be if the flat bottom was adjustable so that it can be used on chairs with various seat cushion angles without rolling over. Then, it would be perfect.

Excelente producto. Lamento no haberlo comprado mucho antes. Paso al menos 8 horas diarias sentado y usando el Curble desapareció el dolor lumbar desde su primer uso. Recomendado complementarlo con un descansa pies.

For a mom who has just given birth, it really does provide helpful support for the lower-back muscles and offers noticeable comfort.

長年の肩こり、腰痛に少しはよいのではと、会社の事務椅子（エルゴ感などない普通のオフィスチェア）で利用。姿勢矯正感はあまりなく、思った以上に色々な座り方をする余裕があり、正しく座れているのかよくわからず、正直なところ効果は不明である。マウスをトラックボールや、縦型（ロジのLift）にした方が、腰はともかく肩には効くのでは。 あと長時間座っていると、どういうわけかお尻の上部、尾てい骨の付け根の左右あたりが痛くなってきます。

背中は痛くないけど、お尻は守れなかった…

これをイスの上に置いて座るだけで腰が伸びて姿勢が良くなるので気に入ってます。

職場で使ってます。長時間座っても腰が痛くならないようになりました。値段は高いですが、買って良かったと思います。