LARK, Adjustable Lumbar Home Office Chair

Regular price $299.99
Sale price $299.99 Regular price $399.99
Save $100 (25%)
Color: Black
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The Lark chair introduces groundbreaking 3D adaptive adjustable lumbar support, ensuring continuous spinal health care, and making it the ideal choice for comfort. The seat cushion is crafted with a unique blend of structured cotton and nylon elastic material, ensuring a well-defined supportive contour and even pressure distribution.


  • Independent Dual Backrest Design: 3D adjustment lumbar support boasts flexible adjustments, including 1.97'' forward/backward movement, 2.36'' up/down adjustment, and swiveling left/right function, allowing for personalized and comprehensive lower back support. Ensuring constant comfort, it provides real comfort.
  • Flexible Headrest Adjustment: The adjustable headrest offers multiple positions with a 50° rotation adjustable, up/down movement 3.94'' range, and forward/backward 1.57'' range for dynamic head & neck support.
  • Elastic Seat Cushion with Separation Design: Featuring a stress-resistant plastic base + 3.15'' thick high-density sponge, the cushion offers excellent support and a comfortable feel, making prolonged sitting fatigue-free.
  • 3D Armrest Adjustment: The PU armrest offers a 1.97'' sliding forward/backward movement, a 30° left/right swing, and a 2.95'' up/down adjustment, providing versatile and personalized arm support.
  • Breathable & Durable Surface: This home office chair is made with a high-quality mesh fabric. The material is breathable to prevent heat build-up and maintain comfort when sitting for long periods. It's also flexible and durable, making this office chair a dependable choice.


  • SKU: ERK-OC15
  • Style/Type: Ergonomic Office Chair
  • Color: Black/Gray
  • Item Weight: 36.71 lbs.
  • Seat Height: 17.75"-20.88"
  • Seat Depth: 15.75"-19.68"
  • Seat Width: 19.31"
  • Max. Weight Capacity: 275 lbs.
  • Headrest Type: 3D Adjustment
  • Armrest Type: 3D Armrest
  • Recline: 90°-125°
  • Hydraulics Gas Piston: Class 3
  • Materials: Mesh, Nylon
  • Box Dimensions: 30.71" x 14.17" x 20.47"
  • Box Weight: 43.76 lbs
  • Recommended height:4‘9‘’-6’1‘’

Installation Manual

Buying Guide

  • About Color Difference

Please note that regarding color accuracy, we strive to display our products on our website as faithfully as possible, considering the variations in individual color perception due to lighting and screen differences.


  • Free Shipping (Lower 48 US States Only)
    We work with multiple third-party delivery partners for delivery and do not currently offer expedited or 2-day shipping. We have two default delivery services, limited to the lower 48 US states only. large item(s) is typically delivered via LTL freight shipping, and general item(s) is delivered via FedEx/UPS. It cannot be delivered to rural routes, Hawaii, Alaska, APO/FPO addresses, or P.O. boxes. Customers in such areas will be charged additional shipping fees. Please consult customer service for shipping quotes.
  • FedEx/UPS will dropped off the item(s) in front of the first ground-level entryway outside your home (front door, porch, or garage). Transit time for free standard shipping varies from 2-7 business days and is not guaranteed.
  • Free LTL freight delivery is Curbside Drop-Off, transit time for free standard shipping varies from 7-18 business days and is not guaranteed. Deliveries are not typically made at weekends or on holidays. The carrier will unload the item(s) to the ground for you at the loading area or in front of the building/house at the curb. This service does not include unpacking, assembly, or garbage removal. Due to the large volume and weight of the product, you may need some assistance from a family member or friend for the removal of the item(s) from the curbside to your house.
  • Paid upgrade services: We can provide upgrade services, including white gloves or other delivery services, if upgrading services it may cause extra charges. And for more detail please contact our customer service.
  • 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)

  • If you are not satisfied with the product, You have 30 days after delivery to return the product in its original condition. Return shipping costs are the responsibility of the customer. Upon return, your merchandise will be inspected and appropriate credits and/or refunds will be issued for the item(s) and any taxes due to be refunded in accordance with state law. A restocking fee will apply.

  • 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 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.
Free shipping On All Orders
30 Day Return Policy Easy Returns and Refunds
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LARK, Adjustable Lumbar Home Office Chair,Black
Regular price $299.99
Sale price $299.99 Regular price $399.99

A Real Comfortable Chair

Eureka enhances your workspace with dependable, scientifically designed ergonomic products.
We believe that making every hour a bit more flexible and comfortable leads to a life with greater freedom.

Innovative Adaptive Lumbar-Back Separation Support

3D adjustment lumbar support boasts flexible adjustments, including 1.97'' forward/backward movement, 2.36'' up/down adjustment, and swiveling left/right function, minimizing the risk of lower back discomfort and spinal pain.

Pressure-Reducing Cushion Made from Premium Cotton

Eureka Ergonomic chairs provide support without skimping on comfort. High-density shaped foam ensures you always feel like you're sitting on a cloud.

Elastic Layered Sponge Cushion

Higher thickness and larger surface area ensure that pressure is more widely distributed while you sit, letting you stay seated for long periods without discomfort.

Adjustable 3D Headrest

Fully adjustable height, depth, and angle allow
for a custom arm fit.Multi-dimensional adjustment, people of different heights can achieve neck support, reducing your cervical pain

Adjustable 3D Armrest

Fully adjustable height, depth, and angle allow
for a custom arm fit.

High-Quality Seat Cushion for Long-term Sitting Comfort

A 2-inch seat depth adjustment reduces pressure on the legs, enhancing overall comfort during extended periods of sitting.

High Elastic Nylon Mesh Fabric

The backrest, headrest, and lumbar support are all with high-elastic nylon mesh fabric finishes, breathable and supportive.

Certified Quality

Our office chairs are solid and durable, providing quality assurance for your health work and life.


Customer Reviews

Based on 4 reviews
Mark T.
The Ideal Office Chair

I was looking for a chair that has a head rest to support my head, comfortable back support, and comfortable pad. This chair had all features I needed and it has treated me good so far.

Carlos J Molina
Awesome chair

And this is it! Love this chair. It's comfortable and I have issues with my lower back and the lower lumbar support is GREAT. Would highly recommend this chair to anyone.

David Morris

A chair that understands comfort! With its thoughtful design and durable materials, this office chair promises to support you through even the longest workdays. Highly recommended!

Mazy G.
Impressive versatility

This chair's multifunctional adjustments ensure tailored comfort for every user, from lumbar support to headrest positioning. A must-have for long hours at the desk.