







D-GT5-BM-06
This butterfly-shaped ergonomic office chair delivers balanced support for modern workspaces. Its split double-lumbar system with a spring mechanism provides adaptive relaxation, adjustable resistance, and a three-level locking function that keeps posture naturally aligned. Combined with synchronous tilting, a seat slider, and an ergonomic U-shaped cushion, it ensures comfortable pressure distribution during long working hours.
Built for stability and long-term performance, this medium-back design features 3D armrests, back-tension adjustment, a 4th-grade Samhongsa gas lift, a 350mm nylon base, and smooth 60mm wheels. The NT-0/NT-7 breathable mesh and Z1 series fabric enhance durability and airflow, making it ideal for corporate offices, bulk projects, and everyday professional use.
- BackrestButterfly-shaped medium-back ergonomic backrest designed to follow the natural curve of the spine, providing balanced upper-back and mid-back support for long work sessions.
- Lumbar Support:Innovative split double-lumbar system with spring lumbar offering relaxation mode, adjustable force, and 3-level lumbar locking. The built-in lumbar bag design automatically tracks the user’s movements for continuous support.
- Mechanism: Smooth synchronous tilting mechanism with 3-level recline lock, allowing controlled, stable reclining while maintaining ergonomic alignment.
- Seat / Slider: Ergonomic U-shaped upholstered seat crafted to reduce pressure on the thighs and hips. Integrated seat slider offers customized seat depth for different user preferences.
- Armrest: 3D multifunctional armrests adjustable in height, depth, and angle to support various working postures and upper-body comfort.
- Seat Height: Responsive seat-height adjustment supported by a 4th-grade Samhongsa gas lift, ensuring durability, stability, and smooth lifting for a wide range of users.
- Back Tension:Customizable back-tension adjustment allows users to fine-tune recline resistance according to body weight and sitting habits.
- Base: Durable 350mm nylon base engineered for reliable load-bearing stability and long-term performance.
- Castors: Smooth-rolling 60mm silent wheels designed for effortless mobility while protecting floors from scratches.
- Mesh / Fabric: Breathable NT-0 & NT-7 mesh for the backrest paired with premium Z1 series seat fabric, providing enhanced airflow, comfort, and long-lasting wear resistance.
Material (MOQ: 300 PCS)
Base (MOQ: 300 PCS)
Armrest (MOQ: 300 PCS)
Headrest (MOQ: 300 PCS)

Specifications
Size of Chair
Dimensions
GT5 Series Office Chair Dimensions
| Dimension | Size (mm) |
|---|---|
| Overall Width | 680 |
| Backrest Outer Width | 500 |
| Backrest Inner Width | 390 |
| Headrest Width | 390 |
| Headrest Height | 200 |
| Armrest Height Range | 280–350 |
| Seat Height Range | 465–565 |
| Backrest Height | 630 |
| Backrest Height (from seat) | 1050–1150 |
| Overall Height | 1170–1365 |
| Seat Depth | 315–400 |
| Seat Front Depth | 500 |
| Base Width | 510 |
| Base Depth | 640 |
GT5 Series Office Chair Dimensions
| Dimension | Size (mm) |
|---|---|
| Overall Width | 680 |
| Backrest Outer Width | 500 |
| Backrest Inner Width | 390 |
| Headrest Width | 390 |
| Headrest Height | 200 |
| Armrest Height Range | 280–350 |
| Seat Height Range | 465–565 |
| Backrest Height | 630 |
| Backrest Height (from seat) | 1050–1150 |
| Overall Height | 1170–1365 |
| Seat Depth | 315–400 |
| Seat Front Depth | 500 |
| Base Width | 510 |
| Base Depth | 640 |
