Refurbished BackStrong Chair

4 reviews
PAY ONCE $550 $1,099 Save $549

Refurbished BackStrong Chair

4 reviews
PAY ONCE $550 $1,099 Save $549

Black Frame with Black Upholstery
Choose Color:
Vegan Leather
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60 Day Guarantee
Try it out - 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:

  • Support ideal posture & movement to increase your flexibility
  • Stimulate circulation to reduce fatigue from long hours of sitting
  • Create movement allowing for an increase of oxygenation and respiration
  • Reduce neck and shoulder strain while you sit

 This BackStrong Chair includes: 

  • Soft high-grade vegan leather 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.  It's easy - less than 10 minutes
  • Maximum weight capacity - 275 pounds

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".

Click Here for more info.

Limited Lifetime Warranty on all components with a one year warranty on the cushions. *Please note the 60-day refund policy does not apply to Refurbished items because they are non-refundable. 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 +-

While the optimal height range for this chair is 4’ 11 ½” (151 cm) to 6’ 1” (186 cm), some of our customers who fall outside of this range have still found it to be a comfortable fit.

The seat height is 21.75". The adjustable range is 18.75" - 21.75".

Maximum weight capacity 275 pounds

Product Specs

Refurbished chairs are non refundable, all sales are final

Sit in the BackStrong and gain:

Ideal posture and greater flexibility

Better blood flow to reduce fatigue

More oxygen to your

Relief from neck and shoulder strain

Backed By Experts

Designed by LA’s leading chiropractor, our chairs have earned the support of the wellness community. Watch world-renowned Dr. Travis Stork explain why he believes the All33 BackStrong chair is a must-have for anyone who sits throughout the day.

Product Features


Unlike regular chairs that allow you to lean back at unsafe angles, ours was designed to fit the curve of your spine perfectly. This design cradles your pelvis and lower back, causing your vertebrae to stack into ideal posture. Sit back, and you’ll find it’s impossible to slouch. The result? Relief in your neck and shoulders and a difference you can feel.

Made to Move

Our Sit In Motion® technology makes this the only chair in the world that allows natural movement of the pelvis and back. It was built to move and rock with you, stimulating circulation, improving flexibility, and bringing more oxygen to your muscles.

Easy on the Eyes

Foldaway arms allow you to move much closer to your desk and reduce eye strain. Plus, our commitment to making things that last means we source materials carefully to create chairs that look sleek and at home in your space.

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’ll refund you the cost of the chair within 60 days of purchasing. Our chairs also come with a Limited Lifetime Warranty on all components with a one year warranty on cushions. For more details about our warranty click here.

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!

Comparison All33 Backstrong C1 Leading Office Chairs Leading Ergonomic Chairs

Sit in-Motion Technology

Improves Back Health

Stimulates Circulation

Improves Posture

Updated Technology

Comfortable For Hours On End

Sleek Design

Heals Back Pain Passively

Built With Care


Find your perfect fit with a convenient seat-height lever, 360-degree swivel, and foldaway arms.


Our philosophy is that good design makes your life easier. With 6 simple pieces, our chair can be assembled in less than 10 minutes.


The BackStrong is 100% recyclable. You can replace each component yourself, which means your chair will last a lifetime.

Customer Reviews
5.0 Based on 4 Reviews
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Filter Reviews:
Abigail O.
United States United States
Awesome Purchase!!

This chair is amazing! It engages your core. It has helped my posture so much.

Darlene K.
United States United States
Loving My Chair

I love my All33 chair. I find my posture is better since I starting using my chair. I especially love the support for my lower back.

Wendell P.


All 33 Refurbished BackStrong Chair Review
Sheila D.

I love my chair. I have a history of a lumbar decompression and fusion. This chair as allowed me to work a full day without pain and stress issues. 95% of my work day is sitting behind a desk. Before the purchase of the Back Strong chair I would have to be away from my desk every half hour to be able to last a full day because of the pain and stiffness of sitting. I am very please with my chair! Thank you!