GX Signature • STC Designer • RTC High-Performance v
Cool, breathable comfort with ergonomic support—ONEX mesh chairs keep you focused from morning to night.
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Designed for extended working sessions, the ONEX Shift Ergonomic Office Chair combines multiple ergonomic adjustments with supportive materials for enhanced everyday comfort. Featuring a mesh backrest, fabric seat with moulded foam, adjustable seat depth, and a synchro mechanism with three locking positions, it is designed for 8+ hours of daily use.
Key Features:
Synchro Mechanism with 3 Locking Positions: Provides greater flexibility to adjust and secure the chair in different seated positions.
Adjustable Seat Depth & 3D Armrests: Allows the seating position and arm support to be adapted to individual preferences.
Adjustable Back & Head Support: Features a 95°–115° adjustable backrest and padded 2D adjustable head support.
Continuous Lumbar Support: Helps maintain consistent lower-back support throughout longer working sessions.
Ideal for professionals, home office users, and users requiring a highly adjustable ergonomic chair for 8+ hours of daily seating.
| Model name | ONEX Shift Ergonomic Office Chair |
| Product Code | ONHECSHFGR, ONHECSHFNA |
| Available colours | Black/Charcoal, White/Natural |
| Weight Capacity | 125 KGS |
| Hours of Use | 8 hrs + |
| Warranty | 3 years |
| Overall dimension (WxDxH) | W720 x D705 x H1125-1200 mm |
| Foam type | Molded Foam |
| Mechanism type | Synchro with 3 locking positions |
| Seat Depth Adjustment | Yes |
| Tilt Tension Control | Yes |
| Adjustable Armrests | 3D Adjustable |
| Adjustable Back Tilt | 95°–115° |
| Adjustable Chair Tilt | Yes |
| Lumbar Support | Continuous |
| Head Support | Padded, 2D Adjustable |
| Gas lift class | Class 3 |
| Base size and type | R350 Nylon |
| Caster size & material | 60mm PU caster |
| Back Cover material | Mesh |
| Backrest dimension (WxH) | W510 x H700 mm |
| Back Frame type | Plastic |
| Seat dimension (WxD) | W510 x D475 mm |
| Seat Material | Fabric |
| Seat Thickness | NA |
| Armrest Height range | NA |
| Armrest materials | NA |
| Product weight | 15.3 KGS |
| Package dimensions | 770 x 350 x 660 mm |
| Package weight | 19.1 KGS |
| Testing Standards | BIFMA 5.1 |
| Assembly time | 30 minutes |
We offer a 30-day return policy from the date you receive your item. To be eligible, products must be unused, in original packaging, with tags, and include proof of purchase. For further details, please visit our faq.
Orders are processed within 1–3 business days of payment. You will receive a tracking email once your order has been dispatched. We ship Australia-wide using trusted couriers with the following estimated delivery times:
Please note that delivery times are estimates and may vary. Large or heavy items may require pallet freight, in which case someone must be present to sign for the delivery. For further details, please visit our FAQ:
GX Signature • STC Designer • RTC High-Performance v
Cool, breathable comfort with ergonomic support—ONEX mesh chairs keep you focused from morning to night.
Adaptive Ergonomic Support
Smart shaping that follows your natural posture for long hours of work, play, and daily routines.
High Density
Comfort Foam
Premium cushioning engineered for a balanced feel, supportive where you need it, soft where it matters.
Durable Everyday Construction
Reinforced materials tested to handle real-world use, long sessions, and constant movement.
Smooth, Easy Adjustability
Intuitive recline, height, and seating adjustments designed to match how you move throughout the day.
Comfort Focused Contouring
Thoughtfully shaped back and seat contours that support your body naturally for all-day ease.
Designed for Real People & Spaces
Modern comfort that fits seamlessly into bedrooms, offices, gaming setups, and creative spaces.
Supports your back while maintaining airflow.
Move the lumbar, headrest, and arms to suit your needs.
Stable, dependable, and built for long work sessions.
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