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Model code: T53HLDA0KK-5H1WW
This option is currently unavailable to order. Dispatch timing does not apply to this selection.
Lifestyle images are styled and may show specifications that differ from the selected chair. Check the gallery image and selected options before ordering. Recline resistance can feel different depending on the sitter's build; try T50 AIR at an Australian stockist where practical.
Ash White
Carbon Black
Mineral Grey
T50 AIR 2nd generation was developed from the real-world feedback of more than three million T50 users. It pairs precise personal fitting with high-strength Airflex mesh across the seat and backrest, addressing small gaps and unwanted play found through long-term use.
Firm support, constant airflow and a refreshed adjustment system keep the chair comfortable through long periods of focused work in every season.
Full mesh, refined personal fitting. Airflex mesh runs from the backrest through the seat, while a wider lumbar pad, 310 mm mesh headrest and higher 4D armrests respond more closely to different bodies and working postures.
Feedback from more than three million users made the next steps clear. SIDIZ examined what people needed, and what still felt unresolved, through every moment spent in the chair.
T50 became part of daily life in offices, home offices and studies, helping reshape expectations for Korean task seating.
Rather than relying on the model's reputation, SIDIZ analysed years of review data to identify small but repeated sources of discomfort.
The lumbar feel, headrest shape and range, and low armrest position were all refined to create a more assured sitting experience.
Mesh across the backrest and seat releases heat and moisture quickly. The open structure maximises circulation for fresh comfort throughout the year.
A high-strength mesh with resilient elastic recovery supports the hips and back without losing its shape through long use.
BIFMA-tested construction supports up to 125 kg. A damaged seat can be purchased and replaced separately, extending the useful life of the chair.
T50 AIR 2ND GENERATION
Prefer an airy seat to a cushioned one? T50 AIR combines a mesh seat and backrest with adjustable support, so you can fine-tune your setup for the way you work.
Choose your colour, then review the price and current delivery details before ordering.
SEAT FEEL
The open mesh structure lets air circulate around both contact areas. Prefer a cushioned fabric seat? Compare the T50 2nd generation.
PERSONAL FIT
Adjust the lumbar support, headrest and armrests to suit your seated position. See the adjustment guide, and make room for regular movement breaks.
YOUR WORKSPACE
Compare the chair dimensions with your desk height and the space around it. Your body proportions and preferred seat feel matter as much as the room itself.
A precise mechanism reduces downward drift and unwanted play while reclining, supporting consistent comfort through long periods of sitting.
A support area about 1.5 times wider than before spreads pressure rather than concentrating it. Flexible material follows the body's contours.
Adjust the support through 50 mm of height and 10 mm of depth to find the position that fits the lower back.
A wider support surface keeps comfort continuous wherever the head rests.
Breathable mesh releases heat while the broad surface supports the neck and head through changing postures.
The wider surface keeps contact as the head turns or rests at an angle.
Tune the headrest through 55 mm of height and 55 degrees of angle for focused or relaxed postures.
Support from elbow to wrist reduces load through the shoulders across different bodies and working postures.
The armrests begin 25 mm higher than before, helping more body types keep elbows supported and shoulders relaxed.
Adjust 60 mm in height, 30 mm fore and aft, 20 degrees in angle and 10 mm in width to support the arms through different tasks.
The inward-falling edge helps prevent pressure on the forearm as posture changes.
The T50 heritage is shaped around natural spinal and pelvic curves. It reduces localised pressure as posture changes through long sessions of work and concentration.
The backrest follows the spine's natural S-curve to help maintain a balanced posture without loading the lumbar region unnecessarily.
The chair's central movement mechanism lets the body change position naturally instead of remaining fixed. Recline range and resistance can both be tuned to the body and task.
The backrest and seat move at coordinated but different angles to keep the lower back and pelvis supported.
Set the available travel from 105 to 130 degrees, from upright focus to relaxed rest.
Use the lever to tune how firmly the backrest moves for the sitter's build and preference.
Swap between a fabric and mesh seat as preferences or seasons change. The simple release structure is designed for owner replacement.
Softer urethane contact reduces rolling noise and helps protect floor surfaces from scratches.
Chair height / seat depth
Headrest height / angle
Tilt range / tension
Armrest height / depth / angle / width
Lumbar support height / depth
SIDIZ Australia provides a five-year limited warranty unless a different period is stated for the product or component.
Warranty coverage is additional to your rights under the Australian Consumer Law. See the full terms for exclusions and the claim process.
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
This warranty is in addition to, and does not limit, exclude or modify, the rights and remedies available to you under the Australian Consumer Law.
A melamine foam cleaning block can help remove marks from the chair frame. Rub gently, as excessive pressure may damage the surface.
Do not throw your body weight suddenly against the backrest. Excessive force while reclining can create a tipping risk.
It retains the T50 S-curve identity while refining the parts most often mentioned in long-term feedback: a wider lumbar pad with less unwanted play, a 310 mm mesh headrest, higher 4D armrests and a removable seat system that can swap between mesh and fabric.
The 290 x 160 mm flexible pad adjusts through 50 mm of height and 10 mm of depth. Its wider contact area spreads pressure, and the support can be moved away when a less prominent lumbar feel is preferred.
Synchronised Tilt moves the seat and backrest at coordinated angles. Five limits set the available recline travel between 105 and 130 degrees, while the lever provides fine tension adjustment.
Choose T50 for a more cushioned fabric-seat feel and T50 AIR for maximum airflow through both the backrest and seat. The second-generation removable seat structure is designed to let owners change between compatible fabric and mesh seats when AU parts become available.
The armrests adjust 60 mm in height, 30 mm fore and aft, 20 degrees in angle and 10 mm in width. Their higher starting point and waterfall edge help support the forearms while reducing load through the shoulders.
The chair was designed around Easy Repair so serviceable parts can be replaced without discarding the whole chair. Australian availability of headrest, seat, seat-cover and armrest-pad parts will vary; contact SIDIZ Australia before ordering.
YOUR NEXT STEP
Choose your colour and check the current order details. Still deciding? Review the dimensions and setup resources before making your choice.
Availability and estimated dispatch are shown with your selected option in the purchase area.
BEFORE IT ARRIVES
Assembly is required. Follow the instructions supplied with your chair. View T50 AIR 2 setup resources.
NEED A HAND?
Have a question about chair fit or delivery? Contact SIDIZ Australia before you order.
Product, delivery, service and returns
support@sidiz.au
Monday to Friday, 9:00 am to 5:00 pm AEST
Closed weekends and public holidays
For warranty and faulty returns, review the published warranty terms before contacting support.
