Sitmatic FORMA ergonomic office chair in medium size, showing contoured backrest and adjustable lumbar support system for all-day back pain relief
Sitmatic FORMA ergonomic chair side profile highlighting seat depth adjustment mechanism and synchro-tilt recline for proper spinal alignment.
Sitmatic FORMA office chair small size configuration, designed for petite users with proportionally scaled seat width and depth to prevent dangling feet.
Sitmatic FORMA large ergonomic chair with extended seat depth and wide backrest, supporting users up to 550 lbs with professional-grade lumbar support
Sitmatic FORMA ergonomic office chair in professional workspace setting, recommended by certified ergonomists for Fortune 500 corporate wellness programs.
Close-up of Sitmatic FORMA adjustable lumbar support system, showing height and depth controls that maintain natural spinal curve and reduce lower back pain
A black ergonomic office chair with adjustable armrests, a lumbar support, and a five-star base with casters.
    Sitmatic FORMA ergonomic office chair in medium size, showing contoured backrest and adjustable lumbar support system for all-day back pain relief
    Sitmatic FORMA ergonomic chair side profile highlighting seat depth adjustment mechanism and synchro-tilt recline for proper spinal alignment.
    Sitmatic FORMA office chair small size configuration, designed for petite users with proportionally scaled seat width and depth to prevent dangling feet.
    Sitmatic FORMA large ergonomic chair with extended seat depth and wide backrest, supporting users up to 550 lbs with professional-grade lumbar support
    Sitmatic FORMA ergonomic office chair in professional workspace setting, recommended by certified ergonomists for Fortune 500 corporate wellness programs.
    Close-up of Sitmatic FORMA adjustable lumbar support system, showing height and depth controls that maintain natural spinal curve and reduce lower back pain
    A black ergonomic office chair with adjustable armrests, a lumbar support, and a five-star base with casters.
Sitmatic FORMA ergonomic office chair in medium size, showing contoured backrest and adjustable lumbar support system for all-day back pain relief
Sitmatic FORMA ergonomic chair side profile highlighting seat depth adjustment mechanism and synchro-tilt recline for proper spinal alignment.
Sitmatic FORMA office chair small size configuration, designed for petite users with proportionally scaled seat width and depth to prevent dangling feet.
Sitmatic FORMA large ergonomic chair with extended seat depth and wide backrest, supporting users up to 550 lbs with professional-grade lumbar support
Sitmatic FORMA ergonomic office chair in professional workspace setting, recommended by certified ergonomists for Fortune 500 corporate wellness programs.
Close-up of Sitmatic FORMA adjustable lumbar support system, showing height and depth controls that maintain natural spinal curve and reduce lower back pain
A black ergonomic office chair with adjustable armrests, a lumbar support, and a five-star base with casters.
Sitmatic FORMA ergonomic office chair in medium size, showing contoured backrest and adjustable lumbar support system for all-day back pain relief
Sitmatic FORMA ergonomic chair side profile highlighting seat depth adjustment mechanism and synchro-tilt recline for proper spinal alignment.
Sitmatic FORMA office chair small size configuration, designed for petite users with proportionally scaled seat width and depth to prevent dangling feet.
Sitmatic FORMA large ergonomic chair with extended seat depth and wide backrest, supporting users up to 550 lbs with professional-grade lumbar support
Sitmatic FORMA ergonomic office chair in professional workspace setting, recommended by certified ergonomists for Fortune 500 corporate wellness programs.
Close-up of Sitmatic FORMA adjustable lumbar support system, showing height and depth controls that maintain natural spinal curve and reduce lower back pain
A black ergonomic office chair with adjustable armrests, a lumbar support, and a five-star base with casters.
    Sitmatic FORMA ergonomic office chair in medium size, showing contoured backrest and adjustable lumbar support system for all-day back pain relief
    Sitmatic FORMA ergonomic chair side profile highlighting seat depth adjustment mechanism and synchro-tilt recline for proper spinal alignment.
    Sitmatic FORMA office chair small size configuration, designed for petite users with proportionally scaled seat width and depth to prevent dangling feet.
    Sitmatic FORMA large ergonomic chair with extended seat depth and wide backrest, supporting users up to 550 lbs with professional-grade lumbar support
    Sitmatic FORMA ergonomic office chair in professional workspace setting, recommended by certified ergonomists for Fortune 500 corporate wellness programs.
    Close-up of Sitmatic FORMA adjustable lumbar support system, showing height and depth controls that maintain natural spinal curve and reduce lower back pain
    A black ergonomic office chair with adjustable armrests, a lumbar support, and a five-star base with casters.
Sitmatic FORMA ergonomic office chair in medium size, showing contoured backrest and adjustable lumbar support system for all-day back pain relief
Sitmatic FORMA ergonomic chair side profile highlighting seat depth adjustment mechanism and synchro-tilt recline for proper spinal alignment.
Sitmatic FORMA office chair small size configuration, designed for petite users with proportionally scaled seat width and depth to prevent dangling feet.
Sitmatic FORMA large ergonomic chair with extended seat depth and wide backrest, supporting users up to 550 lbs with professional-grade lumbar support
Sitmatic FORMA ergonomic office chair in professional workspace setting, recommended by certified ergonomists for Fortune 500 corporate wellness programs.
Close-up of Sitmatic FORMA adjustable lumbar support system, showing height and depth controls that maintain natural spinal curve and reduce lower back pain
A black ergonomic office chair with adjustable armrests, a lumbar support, and a five-star base with casters.

About

Description

📋 View Our Chair Fitting Form — Click Here

Professional-Grade Ergonomics | Trusted by Ergonomists for 30+ Years | Free Shipping

The Sitmatic FORMA Ergonomic Office Chair is a premium seating solution designed to deliver exceptional support, comfort, and adjustability. Recommended by Ask Ergo Works — certified ergonomic specialists with 30+ years of expertise.

📐 Not sure which size? Use our Chair Fitting Form or contact our specialists.

Key Features

  • Adjustable Lumbar Support — height and depth adjustable
  • Seat Depth Adjustment — prevents circulation cutoff behind knees
  • Multi-Position Adjustable Armrests — height and width adjustable
  • Synchro-Tilt Mechanism — adjustable tension and tilt lock
  • 3 Sizes — Petite, Standard, X-Large
  • Free Shipping on all orders

Sizing Guide

Size Seat Height Seat D×W Capacity Best For
Small 16.75–21.25" 18×19" 350 lbs Petite users
Medium 16.75–21.25" 19×21" 350 lbs Most users
Large 16.75–21.25" 22×24" 550 lbs Larger frames

Who This Is For

  • Professionals working 8+ hours daily
  • People with lower back pain, herniated disc, or sciatica
  • Post-surgical users needing precise positioning
  • Corporate, healthcare, and government ergonomic programs

⚠️ Made-to-Order: Orders are final — but we’re here to help you get it right before you order.

🏢 Corporate or healthcare program? Contact us for volume pricing →

Frequently Asked Questions

How do I choose the right size?

Small fits petite users, Medium fits most users, Large fits broader frames. Use our Chair Fitting Form or contact our specialists.

Is this chair good for lower back pain?

Yes — adjustable lumbar support reduces disc pressure and muscle strain. Seat depth adjustment ensures proper thigh support. For chronic pain, get a personalized assessment.

Is this chair good for a herniated disc?

Yes — adjustable lumbar depth positions support at the affected spinal level, reducing intradiscal pressure. Consult your PT alongside our ergonomic consulting services.

Is this chair good for sciatica?

Yes — seat depth adjustment and lumbar support address the two main sciatica triggers in office seating. For severe cases, get a personalized assessment.

Is this suitable for post-surgical recovery?

Yes — comprehensive adjustability makes it well-suited for post-surgical users. Consult your PT or OT alongside our ergonomic consulting services.

What is the warranty?

Sitmatic’s manufacturer warranty covers defects in materials and workmanship. Contact us for details.

How long does shipping take?

10–15 business days. Free shipping on all orders.

Can this be used in corporate or healthcare environments?

Yes — standard in Fortune 500 companies and healthcare facilities. Contact us for bulk orders.

Why Ask Ergo Works?

  • 30+ years of ergonomic expertise
  • Certified ergonomic specialists — Bay Area roots, nationwide reach
  • Institutional procurement support — volume pricing, net terms

Our ergonomic consulting services include personalized assessments for chair selection, lumbar positioning, and full workstation setup.

Description

📋 View Our Chair Fitting Form — Click Here

Professional-Grade Ergonomics | Trusted by Ergonomists for 30+ Years | Free Shipping

The Sitmatic FORMA Ergonomic Office Chair is a premium seating solution designed to deliver exceptional support, comfort, and adjustability. Recommended by Ask Ergo Works — certified ergonomic specialists with 30+ years of expertise.

📐 Not sure which size? Use our Chair Fitting Form or contact our specialists.

Key Features

  • Adjustable Lumbar Support — height and depth adjustable
  • Seat Depth Adjustment — prevents circulation cutoff behind knees
  • Multi-Position Adjustable Armrests — height and width adjustable
  • Synchro-Tilt Mechanism — adjustable tension and tilt lock
  • 3 Sizes — Petite, Standard, X-Large
  • Free Shipping on all orders

Sizing Guide

Size Seat Height Seat D×W Capacity Best For
Small 16.75–21.25" 18×19" 350 lbs Petite users
Medium 16.75–21.25" 19×21" 350 lbs Most users
Large 16.75–21.25" 22×24" 550 lbs Larger frames

Who This Is For

  • Professionals working 8+ hours daily
  • People with lower back pain, herniated disc, or sciatica
  • Post-surgical users needing precise positioning
  • Corporate, healthcare, and government ergonomic programs

⚠️ Made-to-Order: Orders are final — but we’re here to help you get it right before you order.

🏢 Corporate or healthcare program? Contact us for volume pricing →

Frequently Asked Questions

How do I choose the right size?

Small fits petite users, Medium fits most users, Large fits broader frames. Use our Chair Fitting Form or contact our specialists.

Is this chair good for lower back pain?

Yes — adjustable lumbar support reduces disc pressure and muscle strain. Seat depth adjustment ensures proper thigh support. For chronic pain, get a personalized assessment.

Is this chair good for a herniated disc?

Yes — adjustable lumbar depth positions support at the affected spinal level, reducing intradiscal pressure. Consult your PT alongside our ergonomic consulting services.

Is this chair good for sciatica?

Yes — seat depth adjustment and lumbar support address the two main sciatica triggers in office seating. For severe cases, get a personalized assessment.

Is this suitable for post-surgical recovery?

Yes — comprehensive adjustability makes it well-suited for post-surgical users. Consult your PT or OT alongside our ergonomic consulting services.

What is the warranty?

Sitmatic’s manufacturer warranty covers defects in materials and workmanship. Contact us for details.

How long does shipping take?

10–15 business days. Free shipping on all orders.

Can this be used in corporate or healthcare environments?

Yes — standard in Fortune 500 companies and healthcare facilities. Contact us for bulk orders.

Why Ask Ergo Works?

  • 30+ years of ergonomic expertise
  • Certified ergonomic specialists — Bay Area roots, nationwide reach
  • Institutional procurement support — volume pricing, net terms

Our ergonomic consulting services include personalized assessments for chair selection, lumbar positioning, and full workstation setup.

Sitmatic by Sitmatic

Sitmatic FORMA Ergonomic Office Chair with Adjustable Armrests

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Regular price
$786.50
Sale price
$786.50
Regular price
Size:

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