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  • RIEIOR S3 Elite Pro Ergonomic Chair (Black)
  • Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black
  • Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black
  • Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black
  • Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black
  • Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black
  • Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black
  • Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black
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RIEIOR S3 Elite Pro Ergonomic Chair (Black)

$209.99 USD $369.99 USD Save $160.00 USD
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Ideal for professionals who spend long hours at their desks, this chair promotes a naturally aligned sitting posture that helps ease pressure across the back, lumbar region, neck, and head. Designed to fit a wide range of body types(5'4" to 6'7") , perfectly to tall users, it enhances focus and comfort in any workspace or gaming area.
  • Encourages Healthy Sitting Habits
  • Helps Relieve Back Discomfort
  • Extra-Wide Seat
  • High-Back Ergonomic Support
  • Seat Depth Adjustment
  • Breathable All-Mesh Design

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RIEIOR S3 Elite Pro Ergonomic Chair (Black) Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black Ergonomic Office Chair With Adjustable Seat Depth S3 Elite Pro-Black

Adaptive Dual-Zone Lumbar Support & Full Back Coverage

The lumbar support automatically adjusts to the pressure created when you sit, aligning with your spine’s natural curve for targeted, responsive support.

5D Multi-Directional Armrests

2.5" Adjustable Height
Enjoy seamless 2.5-inch armrest adjustability that flawlessly matches your desk and natural elbow angle.
8" Forward & Backward Adjustability
8-inch fore-aft adjustability lets you align armrests perfectly, keeping elbows relaxed under
shoulders during long work sessions.
360° Dual Rotating Armrests
360° dual-rotating armrests are engineered to deliver perfect hand support that adapts seamlessly to your needs.
5" Inward & Outward Adjustment
5-inch width adjustment (inward & outward) fits shoulder widths and arm support needs for all
body types.

From Tight Squeeze to Custom Fit: Seat Depth That Moves for You

Slide-track adjustment creates an instant "size-up" effect, ending thigh-overhang and numb legs. Lean back, spread out, feel zero hardware under you.

Enjoy Next-Level Flexibility

Extend the 2D Headrest in One Smooth Pull. From 5'4" to 6'7", lock the height where your crown rests, then flip the cushion 130° outward for instant side-support.

Work & Relax in One Move

The high-back ergonomic design reclines up to 145° with four secure lock angles for total back relief. Pull out the 18-inch footrest and unwind completely — a simple move turns your chair into a relaxation zone.

Certificated by International Authorities

Including CE (European Conformity Certification), GCC (General Certification of Conformity), SGS (SGS Group) and BIFMA(American Business and Institutional Furniture Manufacturers Association). Our chairs strictly follow the requirements of ergonomic design and durability testing to provide you with reliable support.

Dynamic Ergonomics

Adjustable Headrest
The generously sized headrest offers full support with a 130° adjustable tilt, keeping your head comfortable when leaning back or sideways.
Adjustable Footrest
Enjoy a personalized fit with the 4-level adjustable 18"footrest that adapts to your height and posture. 
Adaptive Dual-zone lumbar Support
From the moment you sit down, the adaptive lumbar cushion adjusts its tension to your natural curve. lt provides continuous support to your spine, reducing lower back strain.
Personalized Seat Depth Adjustment
Tailor the seat depth to your height and ideal leg comfort level. The flexible extension of seating space ensures stable, snug support for both pressure relief on your legs and reclining moments—no awkward squeezing on your hips or thighs.
Based on seat dimensions, help you find the perfect fit.
Specifications
  • Model：S3 Elite Pro
  • Color: Black
  • Item Weight: 44 Pounds
  • Weight Capacity: 450 Pounds
  • Material: Glass Fiber Nylon, Reinforced Mesh
  • Frame Material: Glass Fiber Nylon
Dimensions
  • Item Dimensions: 30"D x 30"W x 47.6"H
  • Item Height: 47.6 inches
  • Seat Back Interior Height: 33.4 Inches
  • Seat Height: 23.2 Inches
  • Seat Depth: 20.5 inches
  • Arm Height: 10 Inches
  • Chair Backrest Width: 20.7 Inches
Features
  • Ergonomic Design Concept, RIEIOR office chair aligns naturally with your spine, easing back strain and enhancing daily sitting comfort.
  • RIEIOR's widened seat and high back are built for users of all heights, from 5'4" to 6'7".
  • This chair adapts to you—featuring a 2D adjustable headrest, adaptive lumbar support, seat depth control, 145° reclining backrest, and 18-inch retractable mesh footrest.
  • The 5D armrests,offer adjust height, depth, width, or rotate 360° to find your most natural arm and shoulder position.
  • A robust 30-inch steel base delivers extra strength and steady performance.
  • Backed by CE, GCC, SGS, and BIFMA certifications, RIEIOR chair built to last—without maintenance worries.
Compatibility & Fit Notes
  • Recommended for users 5'4" – 6'7" tall.
  • Ideal for home office, gaming, or executive setups.