SINC 3 Ergonomic Chair

Firm Smart-Glide Support for Long-Hour Sitting

SINC 3 is designed for users who prefer a firmer, more structured ergonomic sitting experience with strong lower-back support, breathable full-mesh comfort, and responsive support through movement.

Unlike a basic office chair that mainly supports one fixed sitting position, SINC 3 combines a synchronized reclining mechanism with Niture’s Smart-Glide Backrest.

These two movement systems work together to support the lower body and back more continuously as the user sits upright, leans, reclines, and changes posture throughout the day.

Because real sitting is not static.

Your support should move with you.

Quick Decision Guide

Who is this chair for?

SINC 3 is suitable for users who sit for long hours and prefer stronger, more noticeable lumbar support.

It is designed for professionals, business owners, designers, gamers, home-office users, and anyone who regularly moves between focused work, relaxed sitting, device use, and reclining.

SINC 3 is particularly suitable for users who want:

• Firm and structured ergonomic support

• Stronger lower-back contact

• Adjustable lumbar height and depth

• Breathable mesh across the seat and backrest

• Stable support during long work sessions

• Responsive support during posture changes

• A heavier-duty ergonomic chair structure

Who is it not for?

SINC 3 may not be suitable for users who prefer very soft or lightly supported seating.

It may also be unnecessary for users who only sit occasionally, want a simple office chair, or are mainly looking for the lowest possible price.

Users who prefer a gentler lumbar sensation should test SINC 3 at the showroom before purchasing, as its support character is designed to feel firmer and more defined.

Recommended height range

Recommended for users approximately 160–190 cm tall, depending on torso length, thigh length, shoulder position, and overall body proportion.

The best way to confirm the fit is to check whether:

• The headrest reaches the neck curve

• The lumbar support aligns with the lower back

• The seat depth supports the thighs without pressing behind the knees

• The armrests can be positioned comfortably for the user’s desk setup

Maximum load

Maximum weight load: 130 kg

Best use case

SINC 3 is designed for:

• Long work sessions

• Firm lumbar support

• Dynamic sitting

• Focused desk work

• Gaming

• Home-office use

• Reclining while remaining supported

• Users who frequently change posture during the day

Warranty

2-year warranty covering selected structural and mechanical components, including the mechanism, gas lift, chair frame, and base.

Final warranty coverage is subject to Niture’s warranty terms and the condition of the product.

Showroom trial availability

SINC 3 is available for trial at the Niture Puchong showroom.

A showroom fitting is recommended for users who want to compare its firmer support character with SINC, SINC Lite, UltraSinc, and the Hammock Series.

Price

The final price may vary according to colour, configuration, optional footrest, and current promotion.

Where Firm Support Meets Movement

SINC 3 is not designed to hold the user in one rigid position.

You sit upright.

You lean towards your work.

You reach for something beside you.

You check your phone.

You recline.

You return to focus.

SINC 3 is engineered to support these transitions through a combination of synchronized lower-body movement and Smart-Glide back support.

The result is a firmer, more connected sitting experience designed for users who want strong support without feeling completely locked into one position.

Words lie.

Body doesn’t.

Dual Mechanism System

At the core of SINC 3 is its Dual Mechanism System, combining:

• A synchronized seat reclining mechanism

• Niture’s Smart-Glide Backrest mechanism

Each mechanism performs a different role.

The synchronized mechanism manages the relationship between the seat and backrest during recline, helping the hips, thighs, and lower body remain supported.

The Smart-Glide mechanism allows the backrest to respond more closely to movements of the user’s back.

Together, they create a more coordinated ergonomic experience during upright sitting, leaning, reclining, and posture changes.

This helps provide:

• Smoother reclining movement

• Better back contact during posture changes

• More balanced lower-body support

• More comfortable pressure distribution

• A more connected sitting experience

• Stronger support during long sitting sessions

Synchronized Reclining Mechanism

SINC 3 uses a synchronized reclining system designed to coordinate the movement of the seat and backrest.

As the user reclines, the mechanism helps maintain a more natural relationship between the thighs, hips, and upper body.

This reduces the sudden change in body position that can occur with simpler office-chair mechanisms.

The mechanism includes:

• Automatic tension adjustment

• Four synchronized reclining locking positions

• Controlled reclining movement

• Stable lower-body support

• Convenient adjustment controls

The recline can be used for focused work, casual leaning, short recovery breaks, reading, gaming, or relaxed device use.

Smart-Glide Backrest

Traditional office chairs often rely on one fixed reclining motion.

When the user moves differently from the chair’s predefined movement, the back may lose contact with the backrest.

SINC 3’s Smart-Glide Backrest is designed to respond more independently to the movement of the upper body.

As the user leans, reaches, shifts position, or moves between upright and reclined postures, the backrest glides with the movement of the spine.

This helps the chair remain closer to the user’s back instead of supporting only one fixed posture.

Smart-Glide helps support:

• The lower back

• The middle and upper back

• Movement between upright and reclined sitting

• Changes in working position

• Long-hour desk use

• Short recovery moments throughout the day

Instead of asking the user to remain still, SINC 3 is designed to support the way the body naturally moves.

Twin Dynamic Lumbar Support

SINC 3 features Niture’s Twin Dynamic Lumbar Support, the same lumbar-support technology used in Hammock 2.

The dual support sections respond independently to the shape and movement of the lower back, creating a more adaptive and evenly distributed support sensation.

Its breathable mesh construction allows airflow through the lumbar area while maintaining firm, flexible contact with the user’s back.

The lumbar system includes:

• Height adjustment

• Depth adjustment

• Independently responsive dual lumbar sections

• Breathable mesh contact

• Wider lower-back support coverage

• Firm and adaptive lumbar support

Lumbar height adjustment allows the support to be positioned closer to the natural curve of the user’s lower back.

Lumbar depth adjustment allows the user to control how strongly the lumbar system presses forward.

This makes SINC 3 suitable for users who prefer:

• Stronger lower-back contact

• More adjustable lumbar pressure

• Adaptive support during posture changes

• A firmer ergonomic sitting experience

• Greater support during long desk sessions

• Breathable support around the lower back

The correct lumbar setting should feel supportive without creating excessive pressure.

Users are encouraged to adjust the height and depth gradually or test the chair through a personalized showroom fitting.

Four-Level Backrest Height Adjustment

Users of the same overall height can have very different torso proportions.

A fixed-height backrest may place the lumbar support too high or too low, even when the seat height is correct.

SINC 3 provides four levels of backrest height adjustment, allowing the backrest and lumbar system to be aligned more accurately with the user’s body.

Adjusting the backrest height can help improve:

• Lumbar positioning

• Upper-back contact

• Headrest alignment

• Overall chair fit

• Support for different torso lengths

The backrest should be adjusted so that the lumbar wings align with the natural inward curve of the lower back.

Neck-Focused 4D Headrest

A headrest should not only touch the back of the head.

It should be able to reach and support the neck curve.

SINC 3 features a 4D adjustable headrest designed to accommodate different body proportions, sitting positions, and reclining angles.

The adjustment range allows the user to position the headrest for more suitable neck support during focused sitting, leaning, or reclining.

The headrest is particularly useful for users who:

• Recline while reading or thinking

• Take short recovery breaks

• Spend long hours at a desk

• Experience neck fatigue from unsupported reclining

• Want the headrest to match their body proportions more accurately

A suitable headrest position should support the neck without forcing the head forward.

The recommended user-height range is approximately 160–190 cm, but the actual fit should be confirmed by checking whether the headrest reaches the user’s neck comfortably.

Dual-Axis 5D Armrests

SINC 3 uses Dual-Axis 5D Armrests designed to support different arm positions and working activities.

The armrests can be adjusted to accommodate tasks such as:

• Typing

• Mouse use

• Writing

• Gaming

• Using a tablet

• Holding a mobile phone

• Reclining

• Resting between tasks

Correct armrest positioning helps support the elbows and forearms while reducing unnecessary lifting of the shoulders.

The armrests should be adjusted so that the shoulders remain relaxed and the elbows can rest naturally without being pushed too high or left unsupported.

Adjustable Seat Depth

Not every user has the same thigh length.

A seat that is too deep can press behind the knees and make it difficult to sit against the backrest.

A seat that is too shallow may not provide sufficient support beneath the thighs.

SINC 3 includes a sliding seat-depth adjustment that allows the user to position the seat according to their lower-body proportions.

A suitable seat-depth setting helps provide:

• Better thigh support

• Reduced pressure behind the knees

• More effective lumbar contact

• A more stable sitting position

• Better accommodation for different leg lengths

The user should be able to sit fully against the backrest while maintaining a comfortable gap between the front edge of the seat and the back of the knees.

Engineered for Lower-Body Comfort

Long sitting hours affect more than the spine.

The hips, thighs, knees, and lower body must also remain properly supported.

SINC 3’s seat structure is designed to provide a more balanced sitting experience through:

• Breathable mesh support

• Adjustable seat depth

• A stable seat frame

• Responsive mesh tension

• Cushioned support at the front seat edge

• Reduced pressure around the thighs

The front section of the seat includes a supportive cushioning layer designed to soften contact beneath the thighs.

This helps reduce excessive pressure from the front edge while preserving the airflow and flexible support of the mesh seat.

The goal is to support the lower body without forcing the user into one fixed posture.

Breathable Mesh Comfort

SINC 3 uses breathable performance mesh across the seat and backrest to provide a cooler, lighter, and more responsive sitting experience.

The mesh is designed to balance airflow, flexibility, and supportive tension during long periods of sitting.

Breathable Mesh Comfort helps provide:

• Better airflow around the body

• Reduced heat buildup

• Flexible support

• Responsive rebound

• A lighter sitting sensation

• Greater comfort during extended desk use

The open mesh construction makes SINC 3 suitable for Malaysia’s warm climate, air-conditioned offices, home workspaces, gaming setups, and long daily sitting sessions.

A supportive cushioning layer at the front of the seat helps soften pressure beneath the thighs while maintaining the breathability and responsive support of the mesh seat.

Easy-Access Button Controls

Ergonomic adjustments are only useful when they are easy to access.

SINC 3 uses conveniently positioned button controls that allow the user to operate frequently used chair functions without repeatedly bending forward or searching beneath the seat.

The easy-access control design helps users adjust the chair more naturally throughout the day as their task or posture changes.

Optional Retractable Footrest

SINC 3 is available with an optional retractable footrest.

The footrest can provide additional leg support during:

• Reclining

• Short recovery breaks

• Reading

• Casual device use

• Gaming

• Relaxed sitting

It allows the user to change position and temporarily reduce pressure beneath the legs during longer sitting sessions.

The standard SINC 3 configuration is supplied without the footrest unless the optional version is selected.

One Chair. Multiple Ways to Work.

Modern work does not happen in one posture.

Focus Mode

Sit upright for typing, writing, online meetings, detailed work, and other desk-based activities.

The adjustable lumbar support, armrests, seat depth, and backrest height help create a more stable focused-working position.

Lean Mode

Move into a slight recline while continuing to work, think, read, or use a device.

The synchronized mechanism and Smart-Glide Backrest help maintain support as the body moves away from a fully upright position.

Recovery Mode

Lean back, relax the shoulders, and allow the body to change position during short breaks.

The headrest, backrest, lumbar system, and optional footrest help create a more supported recovery posture.

SINC 3 is designed to support the transitions between these positions instead of expecting the user to remain still throughout the day.

Part of the Niture Ergonomic Ecosystem

Most workspaces are built around the position of the desk and screen.

As a result, users often lean forward, reach towards their work, and hold tension without realizing it.

Niture’s Ergonomic Ecosystem is designed around a different idea.

The workspace should adapt more closely to the body.

The TILT Height Adjustable Desk brings the working surface closer.

The SINC 3 Chair provides structured support through movement.

The G Tablet allows the working interface to move closer to the user.

Together, they help create a workspace that supports changes in posture, working position, and daily behaviour.

SINC 3 can be used as a standalone ergonomic chair, but it becomes part of a more complete ergonomic setup when paired with the wider Niture Ergonomic Ecosystem.

Main Difference vs SINC

SINC is the balanced core model of the SINC Series.

It is designed for users who want a complete Smart-Glide experience with versatile ergonomic support for long-hour work and everyday movement.

SINC 3 has a firmer and more structured support character.

Its Twin Dynamic Lumbar Support provides more noticeable lower-back contact and greater control over lumbar height and depth.

Choose SINC if you want:

• Balanced all-round support

• A versatile Smart-Glide experience

• A safe everyday ergonomic choice

• Support for different sitting styles

Choose SINC 3 if you want:

• Firmer lower-back support

• A more defined lumbar sensation

• Height- and depth-adjustable mesh lumbar support

• A stronger, heavier-duty sitting experience

Main Difference vs SINC Lite

SINC Lite is designed for users who want the essential Smart-Glide experience at a more accessible price.

It provides the core movement-support concept with a simpler overall configuration.

SINC 3 offers a more structured and adjustable sitting experience, including:

• Firmer Twin Dynamic Lumbar Support

• Lumbar height and depth adjustment

• Four-level backrest height adjustment

• Dual-Axis 5D Armrests

• A more substantial ergonomic structure

• Stronger support for long sitting sessions

Choose SINC Lite if you want the essential Smart-Glide experience and strong value.

Choose SINC 3 if you prefer firmer support.

Main Difference vs Hammock Series

The Hammock Series is designed for users who want accessible daily ergonomic comfort.

It provides breathable mesh, lumbar support, adjustable arm support, and footrest recovery at a lower entry point.

SINC 3 is more advanced, more adjustable, and more movement-focused.

Compared with the Hammock Series, SINC 3 offers:

• Dual Mechanism support

• Smart-Glide Backrest movement

• More advanced recline control

• Adjustable backrest height

• More adjustable lumbar support

• Stronger long-hour sitting support

• A heavier-duty structure

Choose Hammock if you want accessible everyday ergonomic comfort.

Choose SINC 3 if you want firmer support, greater adjustment, and more advanced movement-based ergonomics.

Main Difference vs Normal Office Chairs

A normal office chair generally provides basic support in one upright sitting position.

When the user leans, reclines, or changes posture, contact with the lumbar area and backrest may decrease.

SINC 3 is designed around coordinated support.

Its seat mechanism, Smart-Glide Backrest, mesh lumbar system, headrest, armrests, and adjustable backrest work together to accommodate a wider range of sitting positions.

Compared with a basic office chair, SINC 3 provides:

• Stronger movement-based support

• Better back contact during posture changes

• More adjustable lumbar support

• Better long-hour sitting comfort

• More complete neck and arm support

• Adjustable seat depth

• More controlled reclining

• A more connected sitting experience

It is designed for users who want a serious upgrade from simple office seating.

Built to Support. Built to Last.

Every SINC 3 chair is designed for regular long-term use.

Its structural and mechanical components include:

• SGS-certified Class 4 gas lift

• Reinforced chair frame

• Heavy-duty nylon base

• Engineered Dual Mechanism system

• Smart-Glide Backrest mechanism

• Durable castors

• Breathable Mesh Comfort

• Adjustable Twin Dynamic Lumbar Support

Support should remain reliable throughout the working day.

Not disappear after the first hour.

SINC 3 Product Specifications

SINC 3 Product Specifications

SINC 3 Summary

SINC 3 is designed for users who sit for long hours and prefer a firmer, more structured ergonomic experience.

It combines synchronized reclining with the Smart-Glide Backrest to support movement while helping the back remain in closer contact with the chair.

Its Twin Dynamic Lumbar Support provides breathable and adjustable lower-back support, with both height and depth adjustment for different body proportions and support preferences.

SINC 3 is not ideal for users who only need a simple occasional-use chair or prefer very soft lumbar support.

Recommended height range: Approximately 160–190 cm, depending on body proportion

Maximum weight load: Up to 130 kg

Best use case: Long-hour work, gaming, home-office use, dynamic sitting, firm lumbar support, and reclining

Warranty: Five years on selected structural and mechanical components, subject to warranty terms

Showroom trial: Available at the Niture Puchong showroom

Footrest: Optional; the standard version does not include a footrest

Main difference vs SINC: SINC 3 provides a firmer, more defined lumbar experience

Main difference vs SINC Lite: SINC 3 offers greater adjustability and a more substantial support structure

Main difference vs UltraSinc: SINC 3 focuses on firm high-performance support, while UltraSinc is the premium flagship model

Main difference vs Hammock: SINC 3 is more advanced, more adjustable, and more movement-focused

Main difference vs normal office chairs: SINC 3 is designed to maintain more coordinated support during movement instead of supporting only static upright sitting

Experience the Difference

You can read the specifications.

You can compare the adjustment range.

You can watch how the backrest moves.

But the best way to understand SINC 3 is to sit in it.

Adjust the lumbar support.

Move your back.

Lean into the Smart-Glide system.

Feel the difference between soft comfort and firm support.

Your body will tell you everything.

Niture — Words lie. Body doesn’t.