adjustable lumbar ergonomic office chair Eureka Ergonomic front three-quarter view with independent dual mesh backrests and flexible headrest, visible adaptive 3D lumbar support frame, separated elastic seat cushion, 3D-adjustable armrests and five-star caster base in a bright home office near a sit-stand desk; suitable as a task chair for long desk or gaming sessions.
Adjustable Lumbar Ergonomic Office Chair
Hero image 0 of Adjustable Lumbar Ergonomic Office Chair, 0 of 11

Adjustable Lumbar Ergonomic Office Chair

|1 rating

Smart summary

Generated by AI
  • Moves With Your Back

    Moves With Your Back

    The 3D lumbar system shifts with your posture to reduce lower back strain.
  • Cushion Won't Sag

    Cushion Won't Sag

    Hybrid cotton and elastic fibers contour to your hips without collapsing over time.
  • Keeps You Cool

    Keeps You Cool

    Airflow-friendly materials prevent heat buildup during long working or gaming sessions.
  • Fits Your Body

    Fits Your Body

    Customize your seating with adjustable armrests, headrest, and recline.

Specifications

Size: 27.12" D x 26.77" W x 48.23-50.2" H

Weight: 36.71 lbs

Recommended Height: 4'9"-6'1"

Max. Weight Capacity: 275 lbs

Seat Height: 17.75"-20.88"

Seat Depth: 15.75"-19.68"

Lumbar Support: 3D adjustment with flexible adjustments

Headrest: Adjustable with multiple positions and 50° rotation

Armrest: 3D PU armrest for versatile and personalized support

Base Material: Stress-resistant plastic

Seat Cushion: 3.15'' thick high-density sponge

Fabric Material: High-quality, flexible, and durable mesh fabric

Current price is $189.00
Prices may vary in club and online
Add a protection plan
Pro Furniture Assembly
How do you want your item?

Shipping

Free for Plus on eligible orders over $50
Columbus, 43215
Arrives by Wed, Nov 11
Return or replace anytime.
Sam's credit card
Limited time! Get a $60 statement credit when you open an account between 10/28-12/2 and use it to make $30 in eligible Sam’s Club purchases within 30 days¹

About this item

Product details

Adaptive 3D Lumbar Support

The Lark’s innovative 3D adjustable lumbar system moves in height, depth, and curvature to follow your body’s natural motion. Rather than forcing a single posture, it delivers continuous support whether you lean forward, recline, or sit upright—helping reduce lower-back strain and the habitual slouch that builds up over long work or gaming sessions. This responsive support keeps your spine aligned so you stay focused and comfortable for hours.

Engineered Comfort Cushion

A hybrid seat cushion of structured cotton blended with nylon-elastic fibers creates a well-defined contour that cushions without collapsing. The result is even pressure distribution across hips and thighs, fewer pressure points, and less shifting or fidgeting during extended use. You get a balanced feel—inviting softness up top with reliable support underneath—so long periods of sitting feel noticeably more comfortable and stable.

Breathable, Durable, and Intuitively Adjustable

Built with breathable materials to maintain airflow, the Lark prevents heat buildup and keeps you cool during marathon sessions. Intuitive adjustment controls make it easy to personalize height, recline, and lumbar positioning in seconds. Rugged construction and thoughtful styling mean the chair fits both modern home offices and gaming setups while standing up to daily use. In short, the Lark combines adaptive ergonomics, smart cushioning, and practical durability—designed to help you feel better, work smarter, and sit longer.

info:
If the item details above aren't accurate or complete, we want to know about it. 

Key specifications

Specifications

Size: 27.12" D x 26.77" W x 48.23-50.2" H

Weight: 36.71 lbs

Recommended Height: 4'9"-6'1"

Max. Weight Capacity: 275 lbs

Seat Height: 17.75"-20.88"

Seat Depth: 15.75"-19.68"

Lumbar Support: 3D adjustment with flexible adjustments

Headrest: Adjustable with multiple positions and 50° rotation

Armrest: 3D PU armrest for versatile and personalized support

Base Material: Stress-resistant plastic

Seat Cushion: 3.15'' thick high-density sponge

Fabric Material: High-quality, flexible, and durable mesh fabric

Member ratings & reviews

4 out of 5 stars
stars
1 rating1 review
Write a review
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-1 of 1 review

Aug 17, 2026
Reviewer name: anonymous
4 out of 5 stars
4 out of 5 stars review

Solid chair, great lumbar support, very firm seat

Assembly was a breeze and took less than twenty minutes from unboxing to fully set up. The overall design is very comfortable, and the lumbar support does a fantastic job of keeping my lower back aligned through long workdays. My only drawback is that the seat cushion is quite firm right out of the box. I am hoping the padding softens up a bit with regular use, but otherwise, it is a solid, supportive chair. Plus it’s $120 less than on Eureka’s website.

Helpful?0TFFQDMISL5Y18815868525
Current price is $189.00
Prices may vary in club and online
How do you want your item?

Shipping

Free for Plus on eligible orders over $50
Columbus, 43215
Arrives by Wed, Nov 11
Return or replace anytime.