Rae Ergo Flex 4D Ergonomic Chair
Original price was: LKR 79,000.00.LKR 75,423.73Current price is: LKR 75,423.73. Excl. 18% VAT. ( Logged-in users see VAT-inclusive price)
Ergonomic Design – Full mesh backrest with 2D adjustable lumbar support and headrest for maximum comfort
4D Adjustable Armrests – Soft PU armrests with height, angle, width & depth customization
Seat Sliding Function – +4.5cm seat depth adjustment for tailored seating
135° Recline with Lock & Rock – Multiple recline positions with tension control
Retractable Footrest – Pull-out footrest for relaxation during breaks
BIFMA Passed Class 3 Gas Lift – Durable, smooth, and certified height adjustment
Breathable Mesh & Sleek Frame – Keeps you cool and supported throughout the day
Smooth Rolling Wheels & Chrome Base – Sturdy, quiet, and elegant
Perfect for Office, Gaming & Study – Built for long sessions of productivity or play
4 Year Warranty – Peace of mind guaranteed
Grey & Black – Pre Orders Open – Expected Arrival 10th January
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Description
Rae Ergo Flex 4D Ergonomic Chair – BIFMA Certified Premium Comfort and Support
Experience all-day comfort and professional-grade support with the Rae Ergo Flex 4D Ergonomic Chair, designed to elevate your posture, productivity, and workspace aesthetics. Whether you’re grinding through long work hours, gaming deep into the night, or simply looking for premium back support, this chair adapts to you like no other.
BIFMA Certified, the Rae Ergo Flex chair meets strict safety and durability standards, ensuring a long-lasting investment in your health and comfort.
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Key Features:
BIFMA Passed Class 3 Gas Lift
Smooth, safe, and adjustable height control certified for quality and long-term performance.
4D Adjustable Armrests with Soft PU Pads
Move in all directions—height, depth, width, and angle—for personalized arm support that reduces wrist strain and shoulder fatigue.
2D Adjustable Lumbar Support
Provides targeted lower back support. Adjust both height and depth to maintain your natural spine curve.
2D Headrest (Tilt + Height Adjustable)
Ergonomically designed to reduce neck and upper back stress. Customize the angle up to 50° and raise or lower as needed.
135° Reclining & Rocking Mechanism
Lockable and tension-adjustable tilt allows you to rock or recline comfortably—perfect for quick breaks or focused relaxation.
Seat Sliding Mechanism (+4.5cm)
Fine-tune seat depth to suit your leg length and maintain thigh support without cutting off circulation.
3.9” Height Adjustment
Accommodates users of various heights to ensure feet are firmly planted and hips are aligned with knees.
Retractable Footrest
Pull out and relax. Ideal for midday reclines, power naps, or shifting your posture throughout the day.
High-Density Nylon Mesh Back and Seat
Breathable and supportive—keeps you cool and distributes pressure evenly to prevent fatigue.
Sturdy Chrome Base with Smooth Casters
Offers exceptional durability, stability, and effortless mobility across different floor types.
Why Choose Rae Ergo Flex 4D?
✔ Designed for prolonged sitting
✔ Ideal for professionals, creatives, and gamers
✔ Promotes spinal health and posture alignment
✔ Suitable for home offices or corporate environments
✔ Durable and stylish for any modern workspace
Technical Specifications:
Model Name: Rae Ergo Flex 4D Ergonomic Chair
Certification: BIFMA Certified
Armrests: 4D with PU padding
Lumbar Support: 2D adjustable
Recline Angle: Up to 135°
Seat Slide: 4.5 cm
Height Adjustment: 3.9 inches
Footrest: Retractable
Material: High-resilience mesh with aluminum base
Weight Capacity: 125 kg (275 lbs)
Color: Grey
.Warranty: 4 YEARS
Click Here to Read our Post on What Makes the Rae Ergo Flex 4D Different?
Additional information
| Brand | RAE |
|---|---|
| Color | Black, Gray |
| Warranty | 4 Year |
12 reviews for Rae Ergo Flex 4D Ergonomic Chair
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Mesh Material
Look for the R and L marking under the seat near the Retractable Footrest holes and install the R and L Hand Rests accordingly (hand rests have R,L marking on them but the base has nothing to go after and instructions won’t indicate either).
Installation won’t be difficult unless you grew up without playing building blocks/lego.
Just got this ergonomic chair from Rae with a leg rest, and I’m really happy with it so far. It’s super comfortable, and the leg rest makes a big difference when I want to relax. The back support feels great, and it was pretty easy to assemble. Excited to see how it holds up over time!
Good Day future chair buyers! Well, I just bought this RaE Ergo Flex 4 D Ergonomic Chair. And I put it all together with the one Allen Key wrench. Anyway – my review: the Engineers who built it did an excellent job – it is a an efficient and comfortable design.. All the adjustments work well , , , there are no design oversights – no “glitches” – everything fits and works – AND is very easy to assemble with the minimum number of bolts,. I don’t know if it will hold up – but it does have a warranty . . . so it should be OK. I would have preferred a firmer material – such as Poly urethane foam – like I had with my old Circa 1980 Obusforme chair instead of the mesh fabric. . . but this RAE chair offers almost equal adjustability – and I can put a polyurethane foam pad on top of the mesh.. The old Circa 1980 OBUSFORME chair (made in Toronto at the time) . . . was the best chair in the world . . . it is still excellent but it would cost over $1500 USD in Sri Lanka because of the import tax. So, this RAE is a great deal at 92,000 SLR compared to equal alternatives. I recommend it to anyone who wants a TOP-OF-THE-LINE adjustable office chair for a good value price.
I ordered the RAE Ergo Flex 4D Ergonomic Chair from raesl.lk in July, and it was delivered after about three months as mentioned at the time of purchase. The assembly process was quite smooth — the instruction guide provided was clear and very helpful.
I’ve been using the chair since October 2nd, and I must say it’s extremely comfortable and well-designed. The adjustable features really help maintain good posture, and it feels perfect for long working hours. Overall, I’m very happy with the purchase — definitely worth the wait!
The Excellent Customer Service was rendered , the chair has many options to support the Occupation health and safety Aspect . Some who is looking for a cushioned Chair with less options will not see the value of this , but if you are using it for long hours u will notice the benefit.
also they provide 4 years warranty for the good price they have offered which is excellent confidence.
While you expand the business think of the setting up as well, but as u clearly said setting up was very easy as well , for a one chair max 20 mins but if its many chairs will be hard ..
As always thank u for bringing down quality products to Sri Lanka through Rae and Alara