Refurbished BackStrong Chair

492 reviews
Pay Once
$1,099 $550

or Pay over time

Refurbished BackStrong Chair

492 reviews
Pay Once
$1,099 $550

or Pay over time

Choose Color: Black Frame with Black Upholstery
Choose Material: Vegan Leather

10 Minute
assembly time

Proudly based
in the USA


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.

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.

  • Chair Size

    22 ¼–30″W × 26 ¼″D × 41″–44″H
  • Seat Height

    18 ¾″–21 ¾″
  • Seating Area Depth

    17 ½″
  • From Arm to Floor

    24 ¾″–27 ¾″
  • Seat/Back Cushion Size

    30 ¼″W × 26 ½″D × 18″H
  • Carton Size

    30 ¾″L × 21 ½″W × 26″H
  • Container Loading

    84 / 180 / 239 / 271
  • Weight

    N.W. 48.86 lbs, G.W. 60.28 lbs
  • Foam

    Molded foam
  • Arms

    Solid PU arm pads
  • Gas Lift

    CP-1680-45 (80/185 mm drop down 45 mm)

All refurbished chairs are considered final sale and are not eligible for a return, refund, or exchange. If your chair is damaged or defective, it is still covered under our Lifetime Limited Warranty and we will work with you to replace any necessary parts.


Fit Guide


Return Policy

10 Minute
assembly time

Proudly based
in the USA

Sit in The BackStrong and Gain:

Ideal posture and
greater flexibility

Better blood flow
to reduce fatigue

More oxygen
to your muscles

Relief from neck
and shoulder strain

Backed By Experts

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.

1. Sit in Motion® Technology

A patented, one-of-a-kind pivot function that keeps you healthy by freeing you to move while you sit.

2. Adjustable Arms & Seat Height

Find your ergonomic happy place by moving the seat up or down until your feet are flat on the floor. Scoot close to your setup for reduced eye strain with liftaway arms.

2. Adjustable Arms & Seat Height

Find your ergonomic happy place by moving the seat up or down until your feet are flat on the floor. Scoot close to your setup for reduced eye strain with liftaway arms.

  • Black Vegan Leather

    Black Fabric

  • Tan Vegan Leather

    Tan Fabric

  • Red Vegan Leather

    Red Fabric

3. High-Quality Materials

Choose between soft, easy-to-clean high-grade vegan leather or fabric upholstery.

4. Padded Seating

Built for all-day comfort, our Goldilocks-level padding is designed to fit with the chair's lumbar support and induce ideal posture.

60 Day 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.

How We Line Up


BackStrong C1

Leading Office Chairs

Leading Ergonomic Chairs

  • Induces perfect posture by aligning all 33 vertebrae

  • Revolutionary tech that keeps you in motion

  • Chiropractor designed and doctor recommended

  • Boosts energy through increased circulation and movement

  • Enhances performance and focus, ideal for long hours of work

  • Improves breathing & digestion

  • Sleek and stylish design

  • “Named Best Ergonomic Chair for Back Pain” by Popular Science

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 492 Reviews
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Filter Reviews:
Donald C.
United States United States
Review of the Backstrong C1 chair

The seating position is, at first, a bit unusual. But once settled in the support it provides for my lower back is excellent and I can comfortable sit for extended desk time (well, until my Apple watch tells me to “stand” ! )

Rich G.
United States United States
Pricey...GREAT for your back! Highly recommended though.

I have to say was a little skeptical about purchasing a chair for $700.00! I always like to try them out first. I took a chance, glad I did. The BackStrong C1 has to be the BEST computer chair I ever owned. First I like to say customer support was GREAT. Asking questions was replied within minutes in an email. Thank you Sue. Shipping was fast...arrived in (5) days. Assembly took around 8 minutes. Then I sat on it...WOW! GREAT back support. Wish the price was cheaper and the seat softer. Other than that chair is perfect. Like they say "you pay for what you get"! Highly recommended.

all33 BackStrong C1 — Vegan Leather Review
Brad B.
United States United States
Very comfortable and great for me

I am very glad I purchased this chair. I want back to work after three years of being home with the kids and I wasn’t used to sitting for so many hours looking at the screen. After a few weeks back to work, I had shoulder tightness and lower back pain. This chair corrected all my issues and also forces me to sit better. I love the chair and it was the right purchase for me!!

Ron J.
United States United States
Great So Far

So far the chair is great, feels good. not a fan of the fake leather, but love the constant pressure on my lower back. I ordered a second one for the house.