ONYX Series, Ergonomic Office Chair

Regular price $99.99
Sale price $99.99 Regular price $189.99
Save $90 (47%)
Color: Black
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The ONYX ergonomic office chair keeps you comfy and focused with excellent lumbar support, made with airy mesh so you stay cool. Easy on the eyes, great for your back, and friendly to your wallet! A great starter chair that won’t break the bank but will keep on giving with reliable comfort and minimalist good looks.


  • GREAT STYLE: With classic color matching and versatile style, the ONYX Office chair is a stylish addition to any office or workspace.
  • ERGONOMIC: Self-adaptive sponge lumbar support reduces the pressure on the lower back and supports your waist.
  • BREATHABLE MESH: Experience breathable and lasting comfort with the mesh-designed back of the chair. Say goodbye to sweating discomfort, even during the longest workdays.
  • FLIP-UP DESIGN ARMRESTS: Armrests with flip-up design can be neatly tucked under your desk when not in use.
  • SPONGE CUSHION: Soft and comfortable sponge cushion provides you with excellent support when you work.


  • SKU: ERK-OC6
  • Overall Dimensions: 25.59"D x 25.2"W x 39.37-43.32"H
  • Seat Height: 18.5''-21.46''
  • Seat Depth: 20.67''
  • Item Weight: 24.91 lbs
  • Max. Weight Capacity: 275 lbs.
  • Color: Grey, Black
  • Materials: Nylon
  • Back Style: Solid Back
  • Armrest: Flip-up design
  • Gas Piston: Class 4
  • Special Feature: Ergonomic
  • Pattern: Solid
  • Box Dimensions: 24.41"L x 11.02"W x 23.23"H


  • Free Shipping & Free Return Shipping (Lower 48 US States Only) We know how important fast and free shipping is to our customers. We provide free shipping on all of our products. (Limited to the lower 48 US states only) Customers in Alaska and Hawaii will be charged additional shipping fees. Please contact the customer service team for a shipping quote at 844-416-2090.
  • Orders typically take 1-2 business days for processing and are shipped from the nearest fulfillment center. Standard shipping varies from 2-7 business days and is not guaranteed. Please note that shipping times are estimates and subject to potential delays beyond our control, such as weather, shipping issues, customs, or inventory shortages.
  • We rely on third-party mail couriers for delivery and do not currently offer expedited or 2-day shipping.
  • Once your order has been processed, we will email you order status updates and your tracking number. You can always access your account online and view your order status and tracking details there.


Return & Refund Policy (U.S. Only)

  • Customer satisfaction is our top priority. Eureka Ergonomic responds to all your messages or calls within 24 hours. Offering a 30-day return guarantee and all products with at least a 12-month product warranty!

  • If you are not satisfied with the product, you can request a return within 30 days of receiving it. However, if the return does not involve a quality issue, you will need to pay for the return or exchange costs.
  • But if you have any concerns and wish to return the product, please reach out to our Customer Care Experts. We offer solutions to help you fix what’s wrong, so you can keep and love the things you buy. Because sometimes no return is the easiest return of all.
  • If the products are damaged/defective upon arrival, please call customer service or contact us via email within 72 hours.
  • Services: Services like assembly and installation, expedited shipping (i.e. next day or 2nd-day shipping), and extended warranty are non-refundable.
  • Note: We only accept returns if they are purchased directly from us on eurekaergonomic.com and flagship stores established in online marketplaces that are registered under the name of an Eureka Ergonomic entity. Please contact the relevant distributor if otherwise.
  • For other details about exceptions to our return policy, please check THIS LINK. https://eurekaergonomic.com/pages/returns-refunds
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ONYX Series, Office Chair,Black
Regular price $99.99
Sale price $99.99 Regular price $189.99

Ergonomic Design

This chair is meticulously designed with ergonomic principles in mind to provide optimal comfort and effectively reduce lower back and lumbar pain.

High-Elastic Mesh Chair

The highly elastic, specialized mesh fabric offers superior breathability and lasting comfort, even during extended periods of sitting.

Adjustable Sponge Lumbar Support Provides Better Protection For Your Lumbar Spine

Soft sponge lumbar support conforms closely to your body, offering comfortable decompression to safeguard your spinal health.

Flip-up Armrests, A Space-Saving Solution

Adjust it up or down to cater to different preferences, offering comfortable arm support.

Powder-Free Sponge Reinforcement For Enhanced Comfort

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

Height Adjustable For Different Body Heights

Effortlessly adjust the height to ensure comfortable seating for both adults and children.

BIFMA Certified

This product meets BIFMA testing standards, ensuring reliable quality and making it your top choice for office chairs.


Customer Reviews

Based on 14 reviews
Carol Madruga
Love it

It's comfortable, it's supportit rolls easily, the color is fine.
I think it was a good value for my money And I put it together myself in less than an hour I would buy it again.

very strong

The chair is sturdier than I expected, the seat feels large, the backrest gives me plenty of room to move around and get comfortable, and I also like the extra space on either side of my armpits when I sit down. Flip up and back far enough so you don't hit them.

Excellent value

An excellent chair, comparable to much more expensive options from well known brands

Good chair for good price

A pretty solid chair for the price. I've been really picky about getting the right chair. Since the pandemic started, I've worked from home as an artist and play pc games after which puts my sitting time for approximately 8-10 hours in this chair. It has a nice 360-degree rotation, good tilt when leaning back and the armrests move completely up for comfort and tucks perfectly under your desk.

nice neutral coloring

Good economical office chair. nice neutral coloring. Comfortable with good support. The bottom looks white plastic in photos but it’s white metal - good quality for price