BackStrong C1 - Fabric

233 reviews
PAY ONCE $799 $1,199 Save $400

BackStrong C1 - Fabric

233 reviews
PAY ONCE $799 $1,199 Save $400

Black Frame With Black Upholstery
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Free ShippingFree Shipping to the Contiguous 48 States of America
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60 Day Guarantee
Try it for 10 days -
If you don't love it,
send it back

Easy Assembly
Quick 10-minute set up

Ships from the USA

Product Description +-

The BackStrong chair is the result of years of testing and tweaking, 15+ prototypes, and over 1,000 patients testing each version.  We are proud to deliver to you this final result!

Your body wasn't designed to sit all day!

Our unique Sit In Motion® technology and its “bottom up” motion is designed to softly cradle your lower back to relieve crucial pressure points throughout your spine and body.  This is the first and only chair that can induce perfect posture for all 33 of your vertebrae!  

The BackStrong Chair will:

 This BackStrong Chair includes: 

  • Soft fabric upholstery
  • Foldaway arms allow you to move closer to your work for less strain and less strain on your eyes
  • Pneumatic seat-height adjustment; 360-degree swivel; smooth-rolling casters
  • Assembly instructions included - its easy - Less than 10 minutes
  • Maximum weight capacity - 275 pounds purchases come with the reassurance of a 60-day money back guarantee unless otherwise noted at the time of purchase.

If you are not satisfied, you may return the item within 60 days of delivery for a full refund of the purchase price less shipping.

Due to the unique functionality of the SIM (Sit-In-Motion Technology), we request that you keep and use your chair for at least 10 days to allow your body to properly adjust to your All33 Backstrong C1.

If you still wish to request a return after 10 days, please call All33 Customer Service at (855) 976-1690 or send an email to

One of our Customer Care representatives will walk you through all the features and adjustments to ensure you are experiencing all that All33 has to offer.

In the event that a return is required, All33 will send you a return shipping label and instructions to pack up your chair and return it back to us.

All purchases are eligible for an exchange within that same 60-day time frame, a shipping charge for the return shipment still applies.

The item must be returned in like new condition, with all paperwork, parts, and accessories to ensure full credit minus the return shipping charge.

Please call (855) 976-1690 or email for a return authorization and shipping instructions. will not accept any return that is made without a return authorization number and processed through our return service.

Fit Guide +-

The BackStrong chair fits into the 95th percentile of human beings, meaning it fits the same rules as automobiles must follow. Only 5% of the population may be too tall, and 5% may be too small. The seat height is 21.75". The range is 18.75"~21.75".

Maximum weight capacity 275 pounds

Product Specs

Return Policy +- purchases come with a 60-day money back guarantee unless otherwise noted at the time of purchase.

If you are not satisfied, you may return the item within 60 days of delivery for a full refund of the purchase price less shipping.

We recommend you keep and use your chair for at least 10 days to allow your body to properly adjust to your Backstrong C1 because of the unique functionality of the SIM (Sit-In-Motion Technology).

If you still wish to request a return after 10 days, please call All33 Customer Service at (855)-223-6010 or send an email to

Buy More and Save +-

# of ChairsPrice per ChairSavings
2 Chairs$650$300
3 Chairs$620$537
4 Chairs$599.25$799
5 ChairsPlease contact us at (855)-223-6010 or
email us at

The BackStrong chair will:

Support ideal posture and movement to increase flexibility

Stimulate circulation to reduce fatigue from long hours of sitting

Creates movement allowing for an increase of oxygenation and respiration

Reduce neck and shoulder pain strain while you sit

Doctor Recommended

Watch world renouned Dr. Travis Stork explain why he believes the All33 Backstrong chair is a must have for anyone who sits thoughout the day.

Product Features

It's Slouch Proof

Sit In Motion technology allows the saddle to react ergonomically, giving you lower thoracic support and ideal posture - reducing neck and shoulder pain. While softly cradling your lower back to relieve crucial pressure points and instantly improve your posture.

It's One Of A Kind

The Backstrong C1 is the only chair in the world that allows natural movement of the pelvis and back stimulating circulation, improving flexibility, and encouraging an increase of oxygenation and respiration.

It's Easy On the Eyes

Foldaway arms allow you to move much closer to your desk, and help you work with much less strain on your eyes. As an American owned company, we strive to only use the finest materials to make our chairs, designed to last for years on end, and keep a nice sleek look.

60-Day Money Back Guarantee

We know you'll absolutely love your chair, but if for some reason it isn't right for you, we will give you a full refund (Within 60-Days of Purchasing). Our chairs also come with a 5 year limited lifetime warranty on all components with a one year warranty on cushions. For more details about our warranty click here.

Get Complete Relief

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7 reviews

Outperforms the Competition

The only chair that does something for you. Our Sit in Motion™ technology alone would be enough to beat out the competition, yet The All 33 Backstrong Chair wanted to be the very best, so we did it all!

Built With Care


Completely adjustable seat-height lever, as well as a 360-degree swivel with smooth rolling coasters


From product design to technology, we value simplicity. With 6 simple pieces, the chair can be assembled in less than 10 minutes.


All of the components of our products are built with sustainability in mind and are 100% recyclable.

Customer Reviews
4.7 Based on 233 Reviews
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jayce c.
United States United States
Natural hesitation, complete follow through. Expectations exceeded!

I purchased this chair about 30 days ago I waited to leavve a review as I wanted to give it a few weeks to test out and I must say it's an exceptional product, probably the first major purchase I've acquired and not thought about whether I should keep or return. The quality of the chair alone is quite superior very sturdy construction very aesthetically pleasing, high quality materials but obviously the key feature being the pivoting bucket seat. It does throughly support your lower back but only (WHEN YOU WANT IT) which is key and does highly encourage you to have better posture two things I would recommend is getting an under desk stool to better support your legs when resting, as the weight of your legs cause your hips to pivot forward and thus cause the lower back to push you forward for better stabilization I highly recommend a stool and furthermore not that there's anything wrong with the ones included but I replaced the wheels with silent high end ones that roll seamlessly. two things I recommend to make the experience that much better. Overall I am highly satisfied with this purchase and will probably purchase one for my wife in the future. Shout out to unbox therapy for turning me on to this product!

All 33 BackStrong C1 - Vegan Leather Review
Blayze E.
United States United States
Fantastic Chair!

First I should say I don't usually leave reviews, but I am giving a well earned 5 stars for this product. The assembly is not difficult at all and can be done by anyone who is capable of basic assembly. I had an issue with one of the screw holes that caused me to hit a speed bump during the quick assembly process but I contacted their customer service and they made it right and I was able to smoothly finish the assembly without any difficulty. I was nervous about buying a chair I had not sat in before buying and I tend to be picky with chairs since I fidget more than the average person. Upon sitting in the chair after assembly, I was instantly amazed of the comfort difference between this chair and my prior Laz-Boy Costco chair. I can say I found a winner, especially since a comfortable chair particularly for my lower back is essential for me given that I do cross-training exercises, do office work for a living and put a lot of additional hours at my desk as a student too. I have found that I am less sore and not needing to get up and out of my chair to stretch and restore blood flow as I previously needed to do often. I can definitely attest that this chair helps with maintaining a healthy sitting posture.

All 33 BackStrong C1 - Vegan Leather Review
Christina G.
United States United States
Love this chair!!!

This chair has been awesome! My hip and back pain has significantly improved!

Sandy L.
United States United States
Returns/Customer Service Excellent!!

I had to return the chair and Sandra at customer care was wonderful; working with me the whole time. I loved the chair but my husband didn't want it?? I only buy things that have a great return policy; and ALL33 DOES!!

Robin Y.
United States United States
Chair is good so far... customer service is excellent!!!!!

I spent my first day sitting in my new chair so the jury's still out as to whether it will help my back long-term. I can say that I didn't seem to have to shift around as much in my chair to stay comfortable. I'll report back later after some time has passed. The main reason I'm writing this review is to brag on Sandra the customer service representative who helped me when I had an ordering issue. Last Sunday, I inadvertently ordered two chairs when I only wanted one. Their customer service wasn't open on Sunday and you can't cancel an order on the website, so I sent an email explaining my issue, asking to cancel one of the orders. First thing Monday morning, Sandra contacted me saying she had received my email and was in communication with the manager of their shipping Department to see if she could cancel the order and that she would get back with me. Less than 10 minutes later she emailed me again explaining that they were unable to cancel the order but she told me that I could simply refuse one of the chairs when FedEx delivered them and, when they received the returned chair, they would credit my credit card. They delivered the chairs yesterday and it was just as simple as she said. The FedEx delivery person was very understanding and said that people refused packages all the time. Since All33 has not received the returned chair yet, I haven't gotten my refund, but I have every confidence that I will. Thanks again, Sandra!