Eureka Ergonomic

Onyx Ergonomic Office Chair

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Item # 990486196
Current price is $99.99
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Onyx Ergonomic Office ChairOnyx Ergonomic Office ChairOnyx Ergonomic Office Chair
Actual ColorWhite
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Columbus, 43215
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Smart summary

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  • Optimal Ergonomics: Features a contoured frame and adjustable lumbar support to promote healthy posture and reduce lower back strain, ensuring intelligent ergonomics for prolonged use.
  • Balanced Cushioning: Provides \"pillowy support\" with cushioning that perfectly balances softness for comfort and firmness for stability, offering a pleasant and sustained seating experience.
  • Quality Durability: Built with high-quality materials, incorporating a Class 4 hydraulics gas piston for effortless height adjustments and smooth-rolling casters for easy mobility and durability.
  • Cooling Breathability: Ensures proper airflow with a breathable mesh seat and back, explicitly referred to as \"Breathable Mesh,\" keeping the user cool and focused throughout the day.
  • Versatile Design: Boasts a clean, minimalist silhouette with a solid back style and practical flip-up armrests, seamlessly fitting into any workspace while enhancing functionality and style.
onyx ergonomic office chair White by Eureka Ergonomic front-facing view with contoured breathable mesh back, padded seat cushion, adjustable lumbar support, flip-up armrests, five-star caster base and visible height-adjustment lever; suitable for home office or focused study sessions.
Onyx Ergonomic Office Chair
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About this item

Product details

Modern Comfort Meets Performance

The Onyx Chair is designed to provide exceptional comfort and support for long hours of work or study. Its contoured frame and adjustable lumbar support help promote healthy posture and reduce lower back strain. The cushioning strikes the perfect balance between softness for comfort and firmness for stability, ensuring a pleasant seating experience.

Engineered for Everyday Ease

Crafted with high-quality materials, the Onyx Chair is built for durability and convenience. Smooth-rolling casters and a Class 4 hydraulics gas piston allow for effortless movement and height adjustments. The breathable seat and back ensure proper airflow, keeping you cool and focused throughout your day.

Minimalist Design, Maximum Impact

Featuring a clean and minimalist silhouette, the Onyx Chair seamlessly fits into any office or home workspace. Its solid back style and flip-up armrests add to its sleek design while enhancing functionality. This chair is more than just seating — it’s a stylish addition that boosts comfort and productivity.

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Specifications

  • Adjustable lumbar support relieves lower back pressure for comfort
  • Breathable mesh design keeps you cool and dry all day
  • Keep wrist strain at bay with intuitive armrests
  • Soft but supportive seat keeps slouch away and your posture aligned
  • Sleek modern design enhances any office or workspace
  • Overall Dimensions: 25.63" D x 23.63" W x 39.37-43.37" H/26.46 lbs.
  • Recommended height：5'1"-5'9"
  • Max. Weight Capacity: 275 lbs.
  • Seat Height: 18.5''-21.46''

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Sep 25, 2026
Reviewer name: JOHNYKUTTY
1 out of 5 stars
1 out of 5 stars review

Junk, Buy something else.

This chair sucks. The foam cushion is super thin. The lumbar support never stays put and always moves around on you. You can feel the plastic frame through the cushion. The backrest is very uncomfortable.

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