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Onyx, Ergonomic Office Chair

$129 $149
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Color: Black

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Description

The Onyx chair is all about contoured comfort. Lumbar support keeps back strain and tech neck at bay for all-day focus, while a clean, minimalist silhouette complements any workspace.

Features

  • Effortless style: The Onyx chair pairs with classic color matching and versatile aesthetics, the ONYX office chair is a stylish addition to any office or workspace.
  • Intelligent ergonomics: Adjustable lumbar support reduces the pressure on the lower back and supports your waist.
  • BREATHABLE MESH: Tailored for long workdays, a unique breathable mesh construction keeps you dry from meeting to happy hour.
  • Flip-up armrests: Keep wrist strain at bay with intuitive armrests.
  • Pillowy support: A soft but supportive seat keeps slouch away and your posture aligned.

Specification

  • SKU: ERK-OC06
  • Color: Gray, Black
  • Back Style: Solid Back
  • Overall Dimensions: 25.63" D x 23.63" W x 39.37-43.37" H
  • Item Weight: 26.46 lbs.
  • Recommended height：5‘1‘’-5’9‘’
  • Max. Weight Capacity: 275 lbs.
  • Seat Height: 18.5''-21.46''
  • Seat Depth: 20.6''
  • Seat Width: 20.87''
  • Armrest Type: Flip-up design
  • Pattern: Solid
  • Materials: TPEE / Polyester
  • Hydraulics Gas Piston: Class 4
  • Rocking Function:15°
  • Box Dimensions: 24.41" L x 11.02" W x 23.23" H
  • Box Weight: 30.53 lbs

Shipping

Free Standard Shipping (Lower 48 US States Only)

  • Standard Shipping: Transit time is approximately 3-7 days (not guaranteed). FedEx/UPS will drop off the item(s) at the first ground-level entryway outside your home (front door, porch, or garage).
  • Large Items: Shipped via LTL Freight and typically arrive within 7-21 days. The carrier will unload the item(s) at the curb or loading area, but this service does not include unpacking, assembly, or debris removal. You’ll need to move the item(s) inside, so please plan accordingly.
  • Want a White Glove Experience? We offer premium delivery services, including white glove options, for an additional fee. Contact our customer experience team to learn more.
  • Obvious Shipping Damage
    If you receive any LTL shipment and notice any damages to the outer cartons, please refuse the delivery immediately, do not sign any paperwork provided by the carrier, and contact us right away.
  • Live in Hawaii or Alaska? While free shipping isn’t available, we can still ship to you! Reach out to our customer experience team for a custom quote.

Installation Manual

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Onyx Ergonomic Office Chair With Black Mesh Back, Ergonomic Design for Home Office Comfort and Support.
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Onyx, in our customers’ spaces

Eureka ErgonomicEureka Ergonomic Eureka ErgonomicEureka Ergonomic Eureka ErgonomicEureka Ergonomic Eureka ErgonomicEureka Ergonomic
Eureka ErgonomicEureka Ergonomic
@Jenny Gupilan
2025/9/22
Excellent chair!

I ordered multiple chairs for our meeting space, and they’ve been a solid upgrade. Our team says they’re comfortable, even during long meetings, and we really like the clean, professional look. They’re easy to move around, feel much better than what we had before, and still worked well with our budget. Totally worth it.

Onyx Ergonomic Office Chair With Black Mesh Back, Ergonomic Design for Home Office Comfort and Support.
Onyx, Ergonomic Office Chair $129
Eureka ErgonomicEureka Ergonomic
@Dustin
2025/10/14
A Perfect Upgrade for Our Conference Room


We upgraded our conference room with a full set of these chairs, and they've turned out even better than expected. I just needed something that looked good and didn’t blow our budget, but everyone keeps commenting on how comfortable they are. We use them for our weekly team meetings, and honestly—no one has complained once, which says a lot in this office.

Eureka ErgonomicEureka Ergonomic
@Jared Sanders
2025/10/25
Modern,comfortable, ergonomic.


We ordered a handful of these for our conference room, and they’ve honestly worked out great. People aren’t fidgeting through meetings anymore, which is already a win. They look clean and modern, nothing too flashy, but they really pulled the room together.

We have some pretty long weekly meetings, so having chairs that actually support you matters. These have held up really well so far and everyone’s said they’re a lot more comfortable than what we had before. We’ve even had a couple of clients ask about them, which was a surprise. Overall, solid chairs for a busy office.

Onyx Ergonomic Office Chair With Black Mesh Back, Ergonomic Design for Home Office Comfort and Support.
Onyx, Ergonomic Office Chair $129
Eureka ErgonomicEureka Ergonomic
@Chinita
2025/11/5
Perfect for Working From Home


Setup was way easier than I expected. The chair is sturdy, comfortable, and feels great to sit in. I work from home full-time, so having something that actually supports my back makes a huge difference.

Onyx Ergonomic Office Chair With Black Mesh Back, Ergonomic Design for Home Office Comfort and Support.
Onyx, Ergonomic Office Chair $129

Intelligent ergonomics

With ample lumbar support and mesh cushioning, enjoy optimal comfort throughout the workday.

Breathable, high-elastic mesh

Crafted with a high-performance, flexible mesh fabric, enjoy breathability and enduring comfort during the workday.

Optimal lumbar support

Cradle your posture with adjustable support that moves with you.

Keep wrist strain at bay

Adjustable flip-up armrests save space and provide support.

Soft and supportive cushion nurtures posture throughout the day

The seat cushion utilizes a powder-free sponge, free from impurities. It maintains its shape even during extended use, ensuring superior resilience for added comfort.

Height adjustable

Adjust the height to your tailored position.

BIFMA Certified

This prestigious certification recognizes when furniture meets and exceeds safety and durability standards.

Dimensions

Divio Dual-Back Ergonomic Office Chair FAQs

What does the Divio chair’s dual-backrest design do?

Two independently responsive back panels follow your movement as you reach, recline, or shift your sitting position. They are designed to maintain contact with your back during these changes. You can also adjust the headrest and armrests to position the chair’s other support points around your usual working posture.

What height and weight is the Divio chair designed for?

The recommended user height range is 5'1"–6'1", and the maximum weight capacity is 275 lbs. To assess fit before ordering, compare the seat dimensions and adjustable seat height range with a chair you already find comfortable. Your leg length and desk clearance are also useful measurements to check.

Can I adjust the seat height, and how large is the seat?

You can adjust the seat height from 15.94 to 18.90 inches. The seat measures 20.08 inches wide and 20.87 inches deep. When setting it up, choose a height that lets your feet rest comfortably on the floor or on a stable footrest, and check that your legs have enough room beneath the desk.

Are the armrests and headrest adjustable?

Yes. The 3D armrests move up and down, slide forward and backward, and pivot left and right. Position the pads beneath your forearms to suit your working posture. The headrest is adjustable as well, so you can change its position to match the way you sit.

How far does the Divio chair recline, and can it lock in place?

Choose from three lockable recline positions: 98°, 110°, and 135°. A more upright setting suits desk work, while the deeper angles provide options for taking a break. Select the position that feels comfortable for your activity, and make sure there is enough space behind the chair before reclining.

What materials and cushioning does the Divio chair use?

A breathable backrest and multi-layer seat cushion are paired with light gray fabric upholstery. The seat uses extra-thick, zoned padding designed to distribute pressure across the hips. Together, the backrest and cushion are designed to support airflow and seated comfort while you work.

How much space does the Divio chair need?

The Divio chair measures 29.33 inches wide and 28.54 inches deep, with an adjustable overall height of 43.70 to 46.65 inches. These measurements provide a clear reference for arranging the chair in a home office, dedicated workspace, or professional office setting.