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Nox, Genuine Leather Executive Office Chair

$749 $799
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Color: Black

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Description

The Nox combines leather and metal in harmony, with design details that merge understated luxury and everyday comfort, bringing refinement and a commanding presence to any office space.

Features

  • One-Piece Design: The integrated backrest and headrest follow the natural curve of the spine, providing full support and relieving neck and shoulder tension.
  • Plush Comfort: A supportive lumbar curve and suspended seating design deliver stable yet weightless comfort.
  • Durable Genuine Leather: Smooth and easy to care for, its refined surface offers lasting comfort with a polished, modern look.
  • Resilient Seat Cushion: High-density foam provides a soft and supportive seat for lasting comfort during long hours of sitting.
  • Tailored Adjustments: 4 tilt and lock settings with a 97-121° tilt range let you personalize your seating position.


Specification

  • SKU: ERK-OC66-B
  • Style/Type: Executive Office Chair
  • Color: Black
  • General Dimensions: 26.77" D x 26.77" W x 48-51.5" H
  • Item Weight: 42.88 lbs.
  • Materials: Genuine Napa leather (touch areas); PU (non-touch)
  • Recommended Height: 4‘9‘’-6’1‘’
  • Max Weight Capacity: 300 lbs.
  • Seat Height: 19''-22.2"
  • Seat Depth: 18''-20''
  • Seat Width: 21"
  • Cushion thickness:3.14"
  • Armrest Type: Fixed Armrests
  • Tilt Mechanism: 97°-121°(4 positions locking)
  • Hydraulics Gas Piston: Class 4
  • Box Dimensions: 38.58" L x 28.35" W x 18.9" H
  • Box Weight: 63.49 lbs.

Shipping

Free Standard Shipping (Lower 48 US States Only)

  • Standard Shipping: Transit time is approximately 3-7 days (not guaranteed). FedEx/UPS will drop off the item(s) at the first ground-level entryway outside your home (front door, porch, or garage).
  • Large Items: Shipped via LTL Freight and typically arrive within 7-21 days. The carrier will unload the item(s) at the curb or loading area, but this service does not include unpacking, assembly, or debris removal. You’ll need to move the item(s) inside, so please plan accordingly.
  • Want a White Glove Experience? We offer premium delivery services, including white glove options, for an additional fee. Contact our customer experience team to learn more.
  • Obvious Shipping Damage
    If you receive any LTL shipment and notice any damages to the outer cartons, please refuse the delivery immediately, do not sign any paperwork provided by the carrier, and contact us right away.
  • Live in Hawaii or Alaska? While free shipping isn’t available, we can still ship to you! Reach out to our customer experience team for a custom quote.

Installation Manual

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$749 $799
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Collin Probst

I tested this genuine leather office chair - and the Eureka Ergonomic Nox is the perfect fit for executives

The Eureka Nox came in quality packaging, nice protective material and a quality box. The setup was quick and painless, only taking about 20 minutes by myself to build.
This chair doesn't scream but confidently whispers high-end, professional office chair. Whether that is a top-tier executive or Bondian super-villain, I cannot tell yet. It's a bold design, all about strong lines gently tapering at the lumbar support, sweeping padded armrests that glide around the chair to the seat base. It's striking in all the right ways.

The chair has simple, yet capable controls, offering tilt and lock options, height adjustments, and tension control. The lumbar section of the chair provides a good amount of support, but doesn't affect that silhouette, remaining cool, calm, unobtrusive. One part that I noticed even more than the lumbar is the waterfall-style seat, caressing the sides of my legs and alleviating pressure at the same time.

All around, this chair is supportive, firm, yet comfortable, and minimal, all while looking beautiful. It’s perfect for a professional office, an executive suite, the Batcave.

Eureka Ergonomic Nox black genuine leather executive office chair in a modern office room
Nox, Genuine Leather Executive Office Chair $749
Eureka ErgonomicEureka Ergonomic
Steven

This chair fits my home office setup perfectly!

The clean, modern look goes really well with my desk and the natural light coming in, and it instantly made the space feel more put together. The leather feels smooth and high quality, and after a few full workdays, I can say it’s genuinely comfortable. The one-piece backrest and headrest support my posture really naturally, and I don’t get that usual neck or shoulder tension anymore.

I also like the recline — it’s not too loose, and being able to lock it at different angles (I usually keep it slightly leaned back) makes long hours at the desk a lot easier. The seat has a nice balance too, soft but still supportive. Overall, it just feels like a well-designed chair for real daily use at home office, not just something that looks good.

Eureka Ergonomic Nox black genuine leather executive office chair in a modern office room
Nox, Genuine Leather Executive Office Chair $749

Suspended Support

Balanced pressure relief with a light, floating feel.

Lumbar Back Detailing

Precision-crafted linear patterns on the lumbar area enhance the chair’s premium aesthetic and distinctive character.

Waterfall Seat Cushion

Contoured cushion cradles the hips and relieves pressure on the legs.

Recline and Lock

Sit back and relax; literally. With a max tilt angle of 121 degrees, naps are welcomed.

Dimensions

Frequently Asked Questions

What upholstery materials does the Nox chair use?

Genuine Napa leather covers the contact areas, while PU upholstery is used on the non-contact areas. Nox is offered in black, with metal detailing around the arms and base. This combination suits an office setup where you want leather contact surfaces and a coordinated black and metal appearance.

What is the weight capacity, and how wide is the seat?

The maximum weight capacity is 300 lbs, and the seat is 21 inches wide. To assess fit, compare that width with a chair you already find comfortable and consider the room you prefer around your hips. Seat dimensions and your preferred sitting position are useful considerations alongside the weight limit.

How much can I adjust the seat height?

You can adjust the seat height from 19 to 22.2 inches using the Class 4 gas lift. Set the height so your feet rest comfortably on the floor and your arms sit naturally at your desk. Before ordering, compare the minimum seat height with your current chair and workspace.

How far does the chair recline, and can I lock it?

Recline ranges from 97 to 121 degrees, with three locking positions. Choose a more upright setting for computer work or a reclined position for reading and taking a break. Leave enough space behind the chair for the backrest to move freely, especially if your desk is close to a wall or cabinet.

Are the armrests adjustable?

The armrests are fixed, with no independent height or width adjustment. If you want to slide the chair under your desk, check the clearance beneath the tabletop, including any drawers or apron. Compare that opening with the armrest position at your preferred seat height before deciding how the chair will fit.

How are the backrest and headrest designed?

An integrated headrest and backrest form a continuous, curved profile, with a shaped lumbar section at the lower back. This gives Nox its tall executive-chair silhouette. When assessing fit, consider where the headrest and lumbar curve meet your body, since personal proportions affect how these built-in contours feel.

What kind of cushioning does the seat have?

High-density foam fills the 3.14-inch-thick seat cushion. The contoured seat has a waterfall front edge that slopes downward where your legs extend over it. If you are comparing seat styles, consider both the cushioning and the front-edge shape, as these influence how the chair feels beneath your hips and thighs.

What are the overall dimensions, and how much space should I leave?

Overall dimensions are 26.77 inches wide by 26.77 inches deep, with a height of 48 to 51.5 inches. Use these measurements to plan the chair's position, then allow additional room to pull it away from the desk and recline. Check nearby cabinets, walls, and walkways when arranging your workspace.