KERDOM Member Discount Ergonomic Office Chair: Waterfall Seat Edge

Shipping calculated at checkout.

The ergonomic chair provides 4 support points (head/back/buttocks/hands) and proper lumbar support.Comfy breathable mesh task chair with headrest high back,home computer chair 3D adjustable armrests, executive swivel chair with roller blade wheels


*Bodies of All Sizes: 5'2" - 6'4"and up to 300lbs 

*Designed for all body shapes and sizes

*Firm lumbar Rest to Adjust lower Back

*Lumbar support adjusts up and down

*Tilt tension control for supportive reclining

*2D arms support neck and shoulders

*Rated For 8+ Hours of Comfortable Work

*Not Sure Which Chair is Right For You?Take our Quiz

  1. Dimensions ‎21"D x 9"W x 20"H
    Adjustments:Height Range 3.5”
    Seat Height 15.4” - 18.9
    Seat Width 18.9
    Tilt Range 45°
    Seat Depth Range 3
    Armrest adjust 90°Flip-Up
    Caster wheel diameter 2.5 inches
    Number of caster wheels 5 pieces
    Adjustability armrest, backrest, back tilt angle,seat height, seat depth, 
    Max Capacity 350 lbs
    Max Height All Shapes And Sizes.
    Item weight 25.1 lbs
    Warranty 5 years
    Free returns 60 days
  • Adjustments:

    • 45° chair tilt range
    • 3.5" height range
    • 3" seat depth range
  • Materials:

    • Back: Double woven nylon mesh
    • Seat: High-Density (40 ILD) foam
    • Base: Anodized aluminium
    • Frame: Impact-resistant polymer
Color: Black
Available | Ships For Free in 3-5 Business Days

Why You’ll Love It

Adjustability. Support. And comfortable to the core. Kerdom is all about the demands of today’s working world, giving you the flexibility you need to feel supported the entire day. Designed for focused tasks and everyday work alike, it moves with each person’s natural pivot points and seated body motion.

Ergonomic Design Pro

The Ergonomic Chair offers exceptional support for 8+ hours of daily work. With firm lumbar support and a contoured upper backrest, it encourages active, healthy posture.

Big & Mute Function Wheels 

The roller blade wheels are silent and can move to 360° directions. It's soft and smooth which protects your floor without without noise and scratches. And it fits all types of floor, wooden, carpet and etc.

BIFMA certificated 

BIFMA certificated and safe-guarantee. Most office chairs use class 2/3 gas lift. Ergo PLUS use class 4 gas lift to provide a better quality.

Depth Adjustable Seat

A depth adjustment range of 3.25 inches. The depth can be adjusted according to the length of the thigh, which provides sufficient support for the legs and reduces local pressure on the buttocks.

2D Adjustable Headrest

Large surface headrest can fully support your head. The angle of the headrest can be adjusted to fit your neck and relieve neck stress. The height of the headrest is also adjustable

2D Adjustable Armrest

2D adjustable armrest give you the flexibility to adjust based on your movements and keep your arms fully supported at all times with the premium PU soft padding.

20° of effortless recline

Not all reclines are created equal. ErgoChair Core responds to your body weight and keeps your spine stable every step of the way. Move freely and safely, without putting strain on your shoulders, arms, and back.

Stay fresh and healthy

The back and cushion are breathable. A high-quality mesh is used to make it steady, well-shaped and elasticity. May you have a comfortable experience.


When comfort is easy.

Our most user-friendly chair. Just 2 intuitive levers help you tailor support for any posture. Your body needs to move, and this chair makes it easy to.

Free Shipping Sitewide

We provide ground shipping with 24-hour dispatch guarantee and 3-5 days to deliver.

60-Day Free Trial

60-day hassle free return and refund for all of our products purchased from Kerdom official.

Secure payments

We Use Encrypted SSL Security To Protect Your Payment Information

Up To 5-Year Warranty

Kerdom promises 5 years warranty for our beloved customers that purchased with us directly.


Fights fatigue.

Back and seat move in tandem at an ergonomic 2:1 ratio, so you can recline and stretch without putting pressure on your legs, thighs, and lower back. End your day with as much energy as when you started.

Adjustable headrest, Extendable leg rest
No middlemen. Save up to 50%
Free shipping on all orders
Worry-Free Returns
Black Reclining Office Chair For Your Home Office
Adjustable headrest, Extendable leg rest
No middlemen. Save up to 50%
Free shipping on all orders
Worry-Free Returns
Black Reclining Office Chair For Your Home Office


Meet Our Mesh

Our finely woven mesh lets air pass through to naturally regulate body temperature. Durable and supportive, it cradles your entire back in firm yet flexible comfort. A clean, airy look beautifully filters light


Adjustable Arms & Seat Height

Kerdom 933-C Office Chair with 90° flip up armrest will fit almost any desk.No matter where you are,small office or home office.It is always your ideal choice.


Improves circulation.

Comfortably contoured with rounded edges for dynamic pressure distribution up to 300 lbs. Essential for freeing up any restricted blood vessels and reducing stress on the lumbar region.


Adjustable lumbar support.

Subtly arched to support the natural curvature of your spine. Easily adjustable because everyone is different. Have great posture whether you’re sat upright in focus mode, or leaning back to brainstorm your next project.

Wire Control Mechanism

The Importance of Wire Control Mechanism

If you're always frustrated to bend over to find the adjustment control and have to use force to push it, you need to know more about the wire control mechanism of an ergonomic office chair.

Wire control mechanism makes the controller centralized and good-looking. The controllers are located just by the sides of the seat. You can easily reach them and adjust the chair without bending over and major force.

Seat is one of the key elements of an office chair. The high-quality gas lift ensures the safety and the seat contains the whole control system which is the key to make the chair comfortable and useful. Wire control mechanism ensures the endurance of the chair functions


It's a perfect style that will fit on any height of desk.
The special flip up armrest is a great ideal solution for you wherever in office or home

Built With Care in the USA

We’ve committed to bringing manufacturing back to the U.S so that we can ship your chairs faster and help people and the planet along the way. Our state-of-the-art facility is vertically-integrated to minimize our carbon footprint and keep workers safe and happy.

BIFMA® Level 3 Certified

Satisfies the most stringent level of environmental standards from the Business and Institutional Furniture Manufacturers Association.

Genuinely Sustainably Made

From proprietary technology used in fabric cutting to minimize excess to repurposing materials like steel, aluminum, and plastic wherever possible, the guiding principle is to reuse & recycle.


The unique shape of our cushion calls for attention to detail — upholstery is fit around foam by hand and then a string machine pulls the drawstring around the cushion tight. All finishing sewing touches are handmade

High Quality Materials

Raw materials are thoughtfully sourced or created in-house. The recipe for the foam in our cushions (a trade secret mix of water-based polyurethane) delivers Goldilocks-level padding that’s designed to fit with the chair's lumbar support and induce ideal posture