Soma Ergonomics

SomaForm - High Back Chair

Availability: Custom made to order and ships within 4 weeks
Current Stock:
Chair Fit: Average Chair Fit: Tall Chair Fit: Short Max Weight: Up to 275 lbs
Width: 18.50 (in)
Height: 24.00 (in)
Depth: 20.50 (in)
SKU: Somaform-HB
Full Description

Features & Benefits:

SomaForm™ has been discovered by clinicians, ergonomists and Fortune 500 companies as the chair providing the most effective RSI prevention available. It is the result of over 17 years of clinical research and, though it may look simple, it has exclusive features that support your lower back and reduce muscle tension in the upper back and neck when sitting upright better than any other chair!

SomaForm has a firmer, slightly mushroom-shaped seat and flat back that minimize pressure points but provide maximum support without getting in your way making it easy to move around. It's great for "V" sitters who like to sit with their legs spread apart in an open angle and best for helping reduce sciatica.

Build your own chair, Prices starting at $385.00

SomaForm High Back by SOMA Ergo is recommended for people who:

  • Ideal for people who like to recline and people with neck problems.
  • Designed to keep shoulder blades free to form a naturally supported open posture.
  • Supports the low back and lumbar region, the spine, and the neck.
  • Relaxation achieved by slightly reclining and resting the entire upper body against the backrest

More than a chair, it's a modular chair system:

  • Available in 7 sizes with any of 28 different backrests: low, mid-height or tall in narrow, wide or extra wide sizes with or without adjustable lumbar.
  • Meets/exceeds ANSI-HFS Ergonomic Standards.
  • RSI-preventive Thorsac™ backrest.
  • Highest Quality Two-Part Seat™ Promotes natural posture and eliminates that sliding-out-of-your-seat feeling.
  • Exclusive quick-lock back height adjustment to avoid painful wrist rotations.
  • Available with recycled/recyclable or organic fabrics.
  • Large 5-leg base for stability.
  • Recommended by top ergonomists, designers and clinician.
  • Easy-to-reach adjustment.
  • Limited lifetime warranty.
  • Soma High Back Chair Features:
  • Seats: SomaForm™ has a firmer, slightly mushroom-shaped seat and flat back that minimize pressure points but provide maximum support without getting in your way making it easy to move around.  Wider. Best for pear-shaped body type, V-sitters and sciatica issues.  If you are looking for a softer seat please refer to our SomaComfort Series.
  • Backrests: High backrests are contoured with seams allowing the foam to keep subtle contours, a deeper lumbar curve & a more wrap-around shape so you feel held by the chair.
  • Backrest height adjustment: Hand-saving, Quick-Lock lever or ratchet adjust.
  • Base Sleek modern-style, scuff-resistant Nylon with flat top legs upon which you can place your feet.
  • Lifetime Warranty on frame, base, casters and cylinder, 7 years on 24/7 version, 5 years on mechanism, fabric, cushioning and armrests.

SomaForm Chair Specifications:

Overall Height

sm. 37”-41”; med. 39.3”-43.3”; lrg. 42.3”-47.3”

Back Height:

Back Width:

lrg. 24“ with 3” ht adj.

sm. 15”; md. 16”; lrg. 18.5“

Seat Width
sm. 18”; md. 19.5“; lrg. 22”
Seat height:  sm. 16.3”-19.6”; med. 16.5-19.7”; lrg. 17.3-22”
Seat Depth: sm. 17”; md. 19.5“; lrg. 20.5”; -1“+1.5”
 Weight limit:  275lbs
Weight:  68lbs


Why We Like It -

  • Customizable ergonomic chair fitted for user
  • Extremely comfortable

This is Good For -

  • up to 275 lbs
  • Good for someone that requires adjustability






SomaForm™ Chair Fabrics

Grade 1 - Elements (Please click on Box Below to view all colors and specifications)












Grade 2 - Elements (Please click on Box Below to view all colors and specifications)








Grade 3 - Elements (Please click on Box Below to view all colors and specifications)





SomaForm Chair Options

SomaForm - Mechanism

Recommended mechanism for the SomaComfort High Back is : R, E, V & K for maximum complete back support.

soma-spec-e.jpg soma-spec-k.jpg
soma-spec-r.jpg somascsfspecpg-2012.jpg

SomaForm - Casters:

  • Hard Wheel [CH] - 2.5" / 60mm - Good for use on carpet - Included
  • Soft Wheel [CS] - 2.5" / 60mm - Good for use on hard floor + $12.00
  • Soft Braking Wheel [CSB] - 2.5" / 55mm- Rolls when seated + $17.00
  • Soft Reverse Braking Wheel [CSRB] - 2.5" / 50mm - Fixed when seated + $50.00
  • Hard Wheel [CH3] - 2.5" / 75mm - Easier to roll on carpet + $20.00
  • Hard Wheel [CH4] - 2.5" / 100mm - Easier to roll on carpet + $30.00
  • Glides [CG] - Available in Black

SomaForm - Base:

  • Nylon Base [N] - Nylon Black Base - 5 Leg 25" Diameter - Included
  • Nylon Base Black [NH] - 5 Leg 26" Diameter + $20.00
  • Heavy Duty Black [A28] - 5 Leg 28" Diameter + $60.00
  • Polished Aluminum [P] - 5 Leg 25" Diameter + $60.00
  • Wood on Aluminum [W] - Choose between Natural or Mahogany stain - 5 Leg 25" Diameter + $60.00
  • Steel Spider [S] - 5 Leg 25" Diameter + $20.00

SomaForm - Lift:

  • Xtra Short [XLS] - 3" Cyclinder
  • Knee Tilt [LKT] - 3.5" Cyclinder
  • LS [LS] - 4" Cyclinder
  • LST [LST] - 5.5" Cyclinder
  • Mid-Height [LM] - 8" Cyclinder + $12.00
  • Drafting Height [LD] - 10" Cyclinder + $15.00
  • Non-Swivel [LF] - 5" Cyclinder + $75.00

SomaForm - Seat Size:

  • Small [2] - 16" D X 18" W
  • Standard [3] - 17" D X 19"W
  • Deep [4] - 18.5" D X 20" W
  • Xtra Deep [5] - 20" D X 20.5" W
  • Xtra Large [6] - 20" D X 22.5" W

SomaForm - Backrest Options:




SomaComfort - Arms Options:


Fixed [AF] + $45.00


Adjustable height 4" [AH] + $50.00


Adjustable height 3"
Budget arm support.

[AA] + $65.00


"Adjustable Rotating"
Lockable rotation 360°
Adjustable height 4"
Adjustable width 3"

[AR] + $70.00


Swings all the way back behind the backrest

[AS] + $100.00



Adjustable height 4"
Adjustable width 3"

[AL] + $65.00

SomaChairs are built-to-last and designed to provide many years of service under normal use. We warrant
to the original purchaser that products manufactured by Soma Ergonomics will be free from defects in
materials and workmanship and carry the following Warranties when used within a 40 hour work week by
a person weighing 250 pounds or less for standard chairs sizes 1-4; 300 pounds or less for chair sizes 5-7; and
up to 500 pounds for Xtra Sturdy chairs. Warranties are calculated from the date of shipment:
Premium Chair line warranty
Limited lifetime warranty on SomaComfort/SomaForm & Rockit fabricated chair frames
against structural failure, and on bases, lifts, casters, and glides under normal use.
Standard and Budget Chair line warranty
Twelve (12) years on SomaBerkeley, Support, Contour, Venture, Infinity, Hybrid,
ErgoKinetic, Fit, PerfectFit, Mesh, More, Entré, ConChairto and all other SomaChairs not
listed above.
Bariatric/ Xtra Sturdy Chair line warranty
Four (4) year warranty on frame, base and casters for users up to 500#.
On all chair lines except those use in 24/7 environments.
Five (5) years on chair mechanisms, and adjustable arm supports under normal use.
Three (3) years on fabric, seams, cushioning and arm pads under normal use.
24/7Chairs When any SomaChair is used in an over 40 hour per week setting,
a simple two (2) year warranty on all parts will apply.
Replacement parts for parts needing replacement and that can be installed in the field will be shipped
to the customer at no charge. Defective part must be returned to Soma otherwise customer will be charged.
Installation of field replaceable parts (Backrests, casters, bases, lifts, arm supports and pads ) is the responsibility of the customer or the Soma certified dealer through which product was sold. For chairs that
need to be returned to the factory for repair the customer is responsible for any return packing and shipping costs.
No implied warranties, including warranties of merchantability and fitness for any particular purpose
extend beyond the terms of these express warranties. These warranties do not apply to any products
which have been repaired or altered in any way so as to impair performance or reliability, nor to products
which have been misused, abused, neglected or accidentally damaged in transit. Soma Ergonomics, Inc.
liability for its products shall be limited to repairing or replacing parts determined by Soma Ergonomics, Inc.
to be defective or, at Soma Ergonomics’ option, to refunding the purchase price of such parts.
Soma Ergonomics, Inc. will not be liable, under any circumstance, for incidental or consequential damages
(including, without limitation, lost revenues) arising in connection with the sale, use, inability to use,
repair or replacement of Soma Ergonomics, Inc. products. The remedies of the purchaser set forth in this warranty are exclusive and the liability of Soma Ergonomics, Inc. arising from any cause whatsoever shall not
exceed the price paid for the products. Some states do not allow limitations of incidental or consequential damages, so the above limitations and exclusions may not apply to you. Enjoy the world class real
ergonomic support your SomaChair give you and thanks for buying SomaChairs.