The relaxed SINC model: Smart-Glide™ support for people who like to sit slightly leaned back.
The Niture SINC Air is a full-mesh ergonomic chair for people who prefer a slightly reclined sitting position. It is the relaxed model in the Niture SINC Series, combining Smart-Glide™ back-support movement, an auto weight-sensing synchro mechanism, four lumbar-depth positions, 5D synchronized armrests, a retractable footrest and four recline locks from 110° to 150°.
SINC Air is recommended for users approximately 158–190 cm tall and up to 110 kg, and comes with a 3-year warranty. It suits home offices, hybrid work, online meetings, reading and short recovery breaks. You can try it free at the Niture showroom in Puchong, Selangor.
≈ values are manually measured fitting references (allow about ±1 cm). Seated seat height is measured at the showroom with a 75 kg adult, using the same method as the Niture 2026 buying guide.
Start with the 56-second product video, then use the two short videos for a closer look at the adjustments and the four colour options.
A complete overview of SINC Air's relaxed sitting character, movement and main adjustments.
A short walk-around of the parts you will adjust most often.
Compare each finish quickly before choosing one for your space.
Colours can look slightly different depending on your screen and lighting. All four are on display at the Niture Puchong showroom.
SINC Air is built around one sitting habit: leaning back slightly instead of staying upright all day. If that sounds like you, it is a strong fit. If not, another Niture chair will usually suit you better.
If one of these describes you, start with the suggested model instead.
Sit upright for focused desk work most of the day
SINC offers a balanced Smart-Glide™ sitting character. SINC 2's Smart-Glide™ locks both upright and at its lowest point.
Want the most adjustable SINC for long working hours
UltraSinc is the premium SINC, with Wintex Mesh and adaptive lumbar support.
Want essential Smart-Glide™ in a more work-oriented chair
SINC Lite keeps the core Smart-Glide™ experience with everyday ergonomic adjustments.
Are shorter than about 158 cm
SINC 2 has the widest recommended height range in the series, starting from about 145 cm.
Weigh more than 110 kg
SINC Air is rated up to 110 kg. SINC Lite, SINC, SINC 2, SINC 3 and UltraSinc all support up to approximately 130 kg.
Don't need Smart-Glide™ and prefer a simpler chair
The Hammock Series uses tension-knob recline. Hammock 1 gives focused support; Hammock 2 gives wrapping support.
Still deciding? Answer a few questions in the Chair Finder, or sit in SINC Air and the other models free at our Puchong showroom.
SINC Air uses two separate systems: an auto weight-sensing synchro mechanism that controls how the chair reclines, and Smart-Glide™, which controls how the back support follows you as you move.
The synchro mechanism tilts the backrest and seat together at a 2:1 ratio and sets the recline resistance automatically from your body weight, so there is no tension knob to adjust.
Smart-Glide™ works on its own, even when the recline is locked. When it is active, the back-support structure moves with your body instead of staying fixed. At maximum recline the seat rises about 1.5 cm. It does not slide forward.
These are often described as one feature. On SINC Air, each one is separate.
As you lean back, the backrest and seat tilt together, with the backrest moving twice as far as the seat.
The mechanism reads your weight as you lean back and adjusts the resistance for you, instead of relying on a manual tension knob.
When activated, the back-support structure moves with your body as your sitting position changes, whether the recline is locked or free.
Use the lever beside the backrest-height adjustment knob.
Turn the lever to lock the back support at its original upright position for a steadier, more fixed support feel.
Turn the lever back and the back support follows your movement, even while the recline itself is locked at a set position.
SINC Air's lumbar support moves forward in three 2 cm steps, giving four depth positions across 6 cm. You then choose whether it responds to your movement or holds still.
Lumbar height follows the backrest. Raising or lowering the backrest through its 5 cm stepless range moves the lumbar contact point to approximately 19–24 cm above the seat.
Moving the lumbar forward also shortens the usable seat depth, because your back meets the chair earlier. See seat fit for the exact ranges.
After setting the depth, pick the support feel that suits how you sit.
The lumbar support responds as your lower back moves, for a more flexible feel when you shift position often.
The lumbar support holds its position for more consistent lower-back contact.
People of the same height can have very different torso lengths. SINC Air handles this in two steps: a stepless backrest that moves to your torso, then a dual-joint headrest that reaches your neck.
Raise or lower the backrest continuously, with no fixed notches, so the back support meets your torso exactly. This also moves the lumbar contact point between about 19 and 24 cm above the seat. See lumbar support.
Extend the headrest forward, then tilt and rotate it so it meets your neck, whether you sit upright at the desk or lean back.
The headrest has no separate height slider. Its reach comes from three adjustments working together:
Because the backrest height adjusts, SINC Air, like every SINC model, can raise its support for longer torsos. Check that the headrest still reaches your neck with the backrest set for your lower back.
Set the seat for your legs first, then bring the armrests to your elbows. These are the measurements that decide whether SINC Air fits your body, not just your height.
Usable depth is the distance from where your back meets the chair to the front edge of the seat. It changes with both the seat slider and the lumbar depth, because a lumbar set further forward meets your back earlier.
| Setting | Usable depth |
|---|---|
| Lumbar 0 cm · seat slider back | ≈45 cm |
| Lumbar 0 cm · seat slid forward | ≈50 cm |
| All seat and lumbar combinations | ≈40–51 cm |
≈40–51 cm is the combined fitting range, not the travel of the seat slider alone. Measured manually; allow about ±1 cm.
Air passes through the seat, so less heat builds up against your thighs during long sitting.
The same breathable mesh continues through the backrest, keeping airflow across both main contact areas.
Set height and width first, then fine-tune the pads to your keyboard, mouse or device.
The armrests are attached to the reclining structure, so they tilt back with you instead of staying behind at desk level.
SINC Air locks at 110°, 120°, 135° and 150°. Use the first two for desk work and calls, and the deeper two with the footrest for reading, viewing and short breaks. Resistance adjusts automatically to your weight, and Smart-Glide™ can stay active at any locked angle.
Focused keyboard and mouse work at the desk.
Online meetings, calls and lighter desk tasks.
Reading, browsing and watching content.
Short recovery breaks and casual gaming, with the footrest out.
The footrest slides out from under the seat to support your legs when you lean back, then tucks away again when you return to the desk, so it never gets in the way of normal sitting.
Return to 110° or 120° for typing. At 135° and 150° your arms and eyes move away from the desk, so the deeper positions are best kept for reading, viewing and short breaks.
All six SINC models share the same movement system. What changes from model to model is the sitting character, recline feel, lumbar support, fit range and load rating. Use the rows below to see which differences matter for your body.
Dual mechanism: a recline mechanism plus a Smart-Glide™ mechanism. Every SINC model locks Smart-Glide™ upright, and SINC 2 also locks it at its lowest point.
| Model | SINC Air You are here |
SINC Lite | SINC | SINC 2 | SINC 3 | UltraSinc |
|---|---|---|---|---|---|---|
| Product Positioning | Relaxed + more reclined | Essential Smart-Glide™ | Balanced all-rounder | Two Smart-Glide™ lock points | Firmer recline for ≈100 kg+Also for users who like strong recline tension | Premium SINC |
| Recommended height | 158–190 cm | 155–190 cm | 150–190 cm | 145–190 cm | 158–190 cm | 155–190 cm |
| Maximum load | 110 kg | ≈130 kg | ≈130 kg | ≈130 kg | ≈130 kg | ≈130 kg |
| Smart-Glide™ lock | Upright | Upright | Upright | Upright + lowest point | Upright | Upright |
| Lumbar support | 4 depth positions over 6 cmAdaptive / Fixed modes | 3 height levels over 3 cmPlus one 2 cm depth step | Adaptive lumbar support | Rotary-knob depth≈2 cm forward travel | Twin lumbarContact zone ≈8–25 cm above seat | Adaptive, pivots ≈15°Two side airbags |
| Seat height | 45–55 cm≈39.5–47.5 cm seated | 44–56 cm≈40.5–51.5 cm seated | 45–53 cm≈39–45 cm seated | 45–53 cm≈38.5–44.5 cm seated | 47–55 cm≈39.5–47.5 cm seated | 45–52 cm≈39–45 cm seated |
| Seat pan | 51 × 51 cm | 51 × 51 cm | 51 × 51 cm | 53 × 53 cm | 51 × 51 cm | 53 × 53 cm |
| Usable seat depth | ≈40–51 cm | ≈44–50 cm | ≈42–47 cm | ≈38.5–49.5 cm | ≈40–46 cm | ≈42–50 cm |
Unloaded seat height is measured from floor to seat front edge. Seated values use the same showroom method as the Niture 2026 buying guide. Seat pan is the physical seat size; usable seat depth is measured from the lumbar contact point to the seat front edge.
Start with the six fit measurements. They tell you more about whether SINC Air suits your body than height alone. The full dimensions and adjustment ranges follow below.
Measured at the Niture Puchong showroom
Physical sizes and practical fit ranges.
| Seat | |
|---|---|
| Seat pan size | 51 × 51 cm |
| Seat height from ground | 45–55 cm≈39.5–47.5 cm seated |
| Usable seat depth | ≈40–51 cm≈45–50 cm with lumbar at 0 cm |
| Backrest + headrest | |
| Backrest width | 54 cm |
| Lumbar height from seat | ≈19–24 cm |
| Headrest width | 40 cm |
| Headrest height from seat | ≈60–86 cm |
| Armrests | |
| Armrest height from seat | ≈20–29 cm |
| Inner armrest width | ≈34.5–59.5 cm |
| Outer armrest width | 58–80 cm |
| Armrest height from floor | 64–81 cm |
| Overall | |
| Overall chair height | 107–140 cm |
| Overall chair depth | 78–90 cm |
| Base diameter | 70 cm |
Every adjustment range in one place.
| Mechanism | |
|---|---|
| System | Dual mechanismRecline mechanism + Smart-Glide™ mechanism |
| Recline mechanism | Auto weight-sensing synchro |
| Recline ratio | 2:1 backrest to seat |
| Recline resistance | Automatic, set by body weight |
| Recline locks | 110°, 120°, 135°, 150° |
| Smart-Glide™ | |
| Control | Lock / ActivateLever beside the backrest-height knob |
| Lock position | Upright |
| Seat movement | Rises ≈1.5 cm at maximum reclineDoes not slide forward |
| With recline locked | Still moves when activated |
| Lumbar + backrest | |
| Lumbar depth | 4 positions: 0 / +2 / +4 / +6 cm3 forward steps × 2 cm |
| Lumbar modes | Adaptive / Fixed |
| Backrest height | 5 cm stepless |
| Headrest | |
| Type | Dual-joint adjustable |
| Depth | 7 steps / 7 cm |
| Tilt / rotation | 70° / 70° |
| Height adjustment | No separate sliderReach comes from tilt, depth and backrest height |
| Armrests + footrest | |
| Armrest type | Dual-axis 5D, synchronized |
| Armrest adjustments | Height, depth, width, rotation, pivot |
| Moves with recline | Yes |
| Footrest | Retractable |
| Product positioning | Relaxed + more reclined SINC |
|---|---|
| Recommended user height | 158–190 cm |
| Maximum load | 110 kg |
| Material | Breathable full meshSeat and backrest |
| Gas lift | TÜV-certified Class 4 |
|---|---|
| Castors | Silent, smooth-rolling |
| Colours | Beige, Pink, Grey, Black |
| Warranty | 3 years |
Subject to Niture's warranty terms.
For everyday movement around the desk.
Niture supports you with setup and adjustment after purchase.
Short answers on fit, adjustment and recline. Every figure here matches the measurements above.
SINC Air is the relaxed, more reclined model in the Niture SINC Series. It is a full-mesh ergonomic chair with Smart-Glide™ back-support movement, an auto weight-sensing synchro mechanism, four lumbar-depth positions, 5D synchronized armrests, a retractable footrest and four recline locks from 110° to 150°.
SINC Air is recommended for users approximately 158–190 cm tall and up to 110 kg. Leg length, torso length, seat depth and headrest reach also affect fit. If you weigh more than 110 kg, the other SINC models support up to approximately 130 kg.
The seat height is 45–55 cm from the floor to the seat front edge when unloaded, and approximately 39.5–47.5 cm with a 75 kg adult seated.
Usable seat depth is approximately 40–51 cm across all seat and lumbar settings. With the lumbar at 0 cm, it is about 45 cm with the seat slider back and about 50 cm with the seat slid forward. The physical seat pan measures 51 × 51 cm.
The lumbar support moves forward in three 2 cm steps, giving four depth positions: 0, +2, +4 and +6 cm. Its height follows the 5 cm stepless backrest, placing the contact point about 19–24 cm above the seat. You can then choose Adaptive mode or Fixed mode.
Smart-Glide™ lets the back-support structure move with your body as you change position, even when the recline is locked. At maximum recline the seat rises about 1.5 cm; it does not slide forward, and it is not a seat-depth or lumbar adjustment. You lock or activate it with a lever beside the backrest-height knob. Read the Smart-Glide™ guide.
SINC Air uses an auto weight-sensing synchro mechanism. The backrest and seat recline together at a 2:1 ratio, and the resistance adjusts automatically to your body weight, so there is no tension knob. The recline locks at 110°, 120°, 135° and 150°.
The headrest reaches approximately 60–86 cm above the seat. It has no separate height slider; the upper end is reached with the dual joint tilted up, the depth extended to its full 7 cm and the backrest at maximum height. It also tilts 70° and rotates 70°.
Yes. SINC Air comes with a retractable footrest as standard. It slides out from under the seat for reading, viewing and short breaks in the 135° or 150° recline positions, then tucks away for desk work.
Yes, at the 110° or 120° positions, but its sitting character leans relaxed. If most of your day is upright, focused keyboard work, compare SINC or SINC 2 first. They place more emphasis on upright working support.
Both share the SINC dual mechanism: a recline mechanism plus Smart-Glide™. SINC Air is the relaxed model, with four lumbar-depth positions in Adaptive or Fixed mode, recline to 150°, a retractable footrest included as standard and a 110 kg rating. SINC is the balanced all-rounder, with adaptive lumbar support, a 150–190 cm height range, a rating of approximately 130 kg and the footrest as an option. See the full comparison.
SINC Air comes with a 3-year warranty, subject to Niture's warranty terms.
Yes. You can try SINC Air and every other Niture chair free at the Niture showroom in Puchong, Selangor. Walk-ins are welcome Monday to Sunday, 11 AM to 5 PM, and a typical fitting takes about 30 minutes. Requesting a particular consultant may need an appointment.
Measurements narrow the choice, but the final test is how the chair meets your back, legs, neck and preferred sitting angle. Compare SINC Air side by side with the other SINC and Hammock models.
Niture: Words lie, body doesn't.
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Original price was: RM1,999.00.RM1,299.00Current price is: RM1,299.00.
Not sure which ergonomic chair to choose? Use our smart filter to quickly narrow down options by features, materials, and comfort preferences. Search Now...
Choose the payment method that suits you best. We accept Visa, Mastercard, FPX, and Buy Now Pay Later (BNPL) options.
Enjoy peace of mind with our reliable warranty coverage. Our dedicated support team is always ready to assist with after-sales service. Learn More...
Get your ergonomic furniture delivered safely and on time. We provide fast, secure, and trackable shipping options to ensure your order reaches you in perfect condition.
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