Product Features

• Premium Korean WINTEX Mesh Headrest, Backrest, and Seat Cushion – Durable and Comfortable
• Adjustable headrest height
• Backrest tilt lock function
• Backrests recline tension adjustment
• 5-level backrest height adjustment
• 4D armrest design – adjustable in height, angle, width, and forward/backward direction
• Wire-controlled aluminum alloy chassis
• Lumbar support extension
• Seat cushion forward/backward sliding lock function
• Adjustable seat height
• Retractable footrest
• Aluminum alloy swivel footplate and bottom frame
• Korean-made KGS gas lift
• **Please note that the seat shape of the version with footrest is smaller than that of the version without footrest, but the other functions are the same.**
• **3-Year Warranty**

Rioli R40 Luxury Full-Aluminum Ergonomic Office Chair – The Industry Standard in Comfort and Support
Designed with innovation and adjustability at its core, the Rioli R40 sets the benchmark for ergonomic office chairs. Whether you're powering through long hours at your desk or breezing through the workday, this chair delivers exceptional comfort and support with its breathable mesh fabric and full-aluminum frame.

Built around essential ergonomic principles, it offers a seamless experience that lets you focus on productivity without compromise. From the precision-crafted headrest to the fully adjustable 4D armrests and lumbar support, the Rioli R40 ensures you're supported and comfortable—all day long.

Rioli R40 Luxury Full-Aluminum Ergonomic Office Chair Would Be Suitable for These Groups:

• Anyone who love the tight woven mesh for perfect support in both the lumbar and seat
• Anyone who love the premium quality of the materials, top quality, durable and sturdy
• Anyone who needs maximum breathability to help keep cool while maintaining an ergonomic position

Dynamic Variable Lumbar (DVL) Support 

One of the Rioli R40’s most groundbreaking ergonomic innovations lies in its support system—automatically adjusting every time you sit down. It adapts to your body and flexes with each movement. The Dynamic Variable Lumbar (DVL) system adjusts according to your weight, height, posture, and the pressure applied, rotating with you to ensure comfort and support as you shift positions. This lets you focus on your work—not your back.

Korean WINTEX Elastic Mesh Fabric

Soft, adaptive, and anything but ordinary. Our core elastic mesh fabric delivers breathable, ventilated comfort while providing all the support you need for lasting ease. Having passed over 100,000 durability abrasion cycles, WINTEX became one of the renowned mesh suppliers for the famous brand Herman Miller in 2017.

Broad Recline Adjustability

Your office chair should work with you, not against you. Broad recline adjustability allows effortless tuning to suit users of any size. When the recline angle is set just right, you'll notice increased focus, energy, and productivity.

Waterfall-Edge Seat — Gentle on Your Knees, Ergonomic by Design
Crafted with long hours in mind, the Rioli R40 features a waterfall-edge seat that enhances comfort behind the knees. Its softly contoured front edge promotes better circulation and reduces pressure, while the built-in foam padding delivers lasting support. Designed to blend form and function, this thoughtful detail keeps you comfortable and well-aligned throughout the day.

Patented Cable-Controlled Aluminum Synchronous Reclining Mechanism — Precision, Strength, and Ergonomic Mastery
Developed in-house by Haokaohome, this groundbreaking dual-spring cable-controlled mechanism earned its national patent in 2010. Built with a polished aluminum frame, the construction radiates durability, corrosion resistance, and a premium feel at every glance.

Its advanced design allows the backrest to adjust across four recline levels, with a maximum tilt angle of 130 degrees. Even while reclining, the seat cushion remains nearly parallel to the floor—providing users with a relaxed posture and stable support.

Dynamic Variable Headrest — Adaptive Support for Every Angle
The Rioli R40 features a dynamic headrest that adjusts intuitively to your needs. Users can fine-tune the height and angle for personalized comfort, while the headrest itself pivots automatically to support your head no matter your seating position. Whether you’re leaning forward in focus or reclining back in relaxation, it’s designed to move with you—keeping you comfortable and aligned throughout the day.

4D Multifunctional Button-Free Armrests — Effortless Ergonomic Precision
Developed in-house, Rioli’s patented 4D armrests are a triumph of ergonomic engineering. Designed to support your elbows and forearms comfortably, they help reduce shoulder strain and enhance overall seating posture. Coated with soft-touch, durable PU rubber, these armrests offer full adjustability in four directions: forward/backward, up/down, left/right, and angled inward/outward—giving you total control over your workspace comfort.

What sets these armrests apart is their button-free height adjustment: simply place your hand on the armrest and lift to switch between nine discreet height levels. It’s intuitive, fun to use, and beautifully minimalistic in design—clean lines, no buttons, just smooth functionality.

Product Certification

BIFMA Certification 

Mesh meets fire-resistant standard

Mesh meets fire-resistant standard BS 5852:2006

Product Specification

Product Size: 63.5~65.5cm(W) x 59~65cm(D) x 110~-131cm(H)
Seat Height: 45~53cm
Swivel Base Diameter: 66cm
Weight Capacity: 120 Kg
Frame Color: Black
Mesh Color : Black / Grey / Blue / Red
Installation Tutorial-Please click here (Although the product featured in the video differs from the one being discussed, the installation procedures are largely comparable or identical.)