Onyx Bespoke Colour Seat Ergonomic Chair Without Headrest




The Onyx chair is a fresh, contemporary office chair that offers a range of inspired features such as a multi-functional asynchronous mechanism with multiple adjustments and a contoured foam seat and back for extra support and comfort. The Onyx is a top choice for a posture task chair. Available in black or blue fabric and Soft Bonded Leather upholstery options. Optional headrest variant available.

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• Contoured foam seat and backrest for maximum user comfort • Triple lever multi-function mechanism • Ratchet height adjustable backrest • Pump up lumbar support • Seat slide • Height adjustable arms • Brushed aluminium 5 star base • UK crib 5 foam and fabric • Gas lift tested up to: 150 kg • Usage: 24 hours

Additional information

Seat colour

Bergamot Cherry, Ginseng Chilli, Maringa Teal, Myrrh Green, Senna Yellow, Stevia Blue, Tabasco Red, Tansy Purple

Flat Packed or Pre-Assembled

Flat Packed

Max Weight Capacity (KG)


Mechanical Guarantee (Years)


Fabric & Foam Guarantee (Years)


Arm Width (MM)


Arm Height (MM)


Product Weight (KG)


Sacral Support 

Sitting at a desk for long periods of time increases the pressure and stress put on your spine leading to symptoms such as lower back pain and stiffness, fatigue, muscle numbness. We have now upgraded the Onyx to provide you with outstanding support – the pocket sprung seat cushion provides ultimate support and product longevity. Now with inflatable air-pump lumbar support, your whole spine will be supported whilst at work.


The Onyx is designed specifically to improve the way you work – however, we have now designed the Onyx to suit your personal needs too. We have added a variety of colours for you to choose from to make your chair exactly the way you like it!


Upper Extremity Repetitive Strain injury is a common injury caused in the workplace. This is caused by repetitive movement and overuse without proper support and relaxation. Symptoms can include pain, aching or tenderness, stiffness, throbbing, tingling or numbness, weakness, or cramping. To prevent this from occurring, we have now provided you with the Onyx including adjustable armrests to help prevent you from this injury. Our armrests ensure that whilst you’re at work, your hands, arms, elbows, and shoulders are able to relax and recover.

Work better. Live healthier.

Chiro Endorsed

Operating outside of the UK mainland? Please get in touch here.


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