OC12, Ergonomic Office Chair

Regular price $319.99
Sale price $319.99 Regular price $499.99
Save $180 (36%)
Color: Black
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Bid farewell to back pain and hello to productivity and well-being thanks to the OC12 Office Chair, featuring clever ergonomic design and self-adaptive lumbar support. A great choice for extended hours of sitting and working.


  • SELF-ADAPTIVE LUMBAR SUPPORT: The OC12 Office Chair is a perfect choice for long hours of working. Featuring an ergonomic dynamic self-adaptive lumbar support, it follows your body’s movement for optimal comfort and reduced back pain. Be productive and stay healthy with the OC12.
  • A VARIETY OF ADJUSTMENTS: Tailor-made for diverse body types, this chair boasts adjustable back height, a customizable headrest, and adaptable seat depth, allowing you to discover the perfect, most comfortable posture for you. The chair backrest can be adjusted to three settings — 96°, 106°, and 116°.
  • ROBUST ERGONOMIC SEATING: This chair provides a secure and reliable ergonomic seating solution. Equipped with a Class 4 explosion-proof gas spring and a base tested up to 1136 kg of static pressure, this chair securely holds up to 300 lbs.


  • SKU: ERK-OC12-B
  • Overall Dimensions: 25.98"D x 25.98"W x 43.7-54"H
  • Weight: 52 lbs.
  • Max. Weight Capacity: 300 lbs.
  • Materials: Mesh
  • Armrest: 3D
  • Headrest: 2D
  • Box Dimensions: 24.8" x 22.83" x 19.69"


  • 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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OC12 Office Chair,Dynamic self-adaptive lumbar support
Regular price $319.99
Sale price $319.99 Regular price $499.99

Solve Lumbar Problems Caused by Extended Sitting

Dedicated to advancing waist protection technology through focused research and development, we leverage ergonomic principles and insights into bone development across various ages. Our innovative approach dynamically adjusts to lower back changes, actively accommodating your sitting posture. The result? Flexible lumbar spine support that alleviates pressure points on your spine.

Innovative Adaptive Lumbar Support

This office chair with a lumbar support has an auto-chasing mechanism, which automatically follows the movement of the lower back, providing strong lumbar support throughout the day. The intensity of the lumbar support can be adjusted to meet individual needs. It fits the natural curvature of your spine and can help relieve back pain. It can alleviate up to 50% of the lumbar pressure caused by a sedentary office.

Scientific Support for the Lumbar Spine

"Sitting position without support to the lumbar spine creates nearly 50% increase in IVD (Inter Vertebral Lumbar Disc) pressure compared to sitting with lumbar support." - Professor Isabel L. Nunes - Ergonomics: A Systems Approach - Page 56

Multi-functional Adjustment

The backrest of this ergonomic office chair can be reclined and locked within a range of 96°-116°. The angle and height adjustable headrest provides the most comfortable position for your neck. Seat lifts up and down and moves back and forth, plus 3D adjustable armrests for the ultimate in customized comfort in the office, or in front of your game!

High-quality Seat Cushion for Long-term Sitting Comfort

2.76-inch high high-density sponge cushion seat for long sitting without collapse. Cater to a variety of body types, fit the buttocks and legs, And with 2-inch seat depth adjustment to reduce the pressure on the legs, and improve the comfort of sitting for a long time.

Certified Quality

This home office chair uses the gas rod which is made in Korea and certified by BIFMA/SGS. Korea Filo Breathable Back Mesh to keep good air circulation in your back, perfect for longtime sitting. And the high load base is equipped with silent pulleys, compression resistant and stable. Our office chairs are solid and durable, providing quality assurance for your healthy work and life.


Customer Reviews

Based on 3 reviews
James Lehman

OC12, Office Chair

Thanks for the review , James! Hope you will enjoy your new chair!

Brotha Perry
almost perfect

you don't want to know

Thank you for your valuable feedback, Brotha! If you ever find a moment, please feel free to reach out to us via email at customerservice@eurekaergonomic.com. We're here to assist and see if there's anything we can do to enhance your experience with your new chair. Cheers!

Jacob Birkett
Best home office investment ever

I have chronic spine issues. This chair is the most comfortable ever. It provides support for the entire spine, including the neck because the seat is so well padded and supportive. At first, I was hesitant about the price, and the truth is it was so worth it!!