Konig + Neurath: Jet One Gray Task Chair - Refurbished

The JET.ONE is part of the JET family of office chairs, designed to bring together good design, solid ergonomics and value for money. 
It features a clean, contemporary appearance: in the JET.ONE variant, the back shell and support structure are in black plastic, giving a modern yet understated look. 
Broadly described as “ideal for any office scheme or budget” and targeted at commercial use where everyday seating comfort is needed.

Key Features:

• Back Shell & Support: In the JET.ONE, the back shell is made of black plastic (rather than fully fabric-covered) for a distinctive aesthetic. 

• Height Adjustable Backrest: The backrest can be adjusted in height through 9 settings, enabling it to adapt to the user’s body weight and provide tailored comfort. 

• Integrated Lumbar Support: A lumbar support element is included (or is optional) to relieve lower-back strain. 

• Synchro-Mechanism: The chair uses a synchro mechanism where the seat and backrest move in a defined ratio (1 : 3) and opening angle of about 27° — ensuring dynamic, ergonomic motion. 

• Weight Adjustment Range: The mechanism is designed for users from approx. 45 kg to 120 kg. 

• Shell Colour & Finish Options: For the JET.ONE, the shell/back support is black as standard; the base and arms may have black or aluminium finishes depending on version. 

• Armrests & Base Options: The JET range allows selection of functional armrests (height/width adjustable) and base options in steel or aluminium, plastic-covered or polished. 

• Upholstery: A broad range of upholstery fabric groups is available (5 fabric groups listed) allowing colour and texture customisation. 

• Warranty & Certification: The JET range is backed by a 12 month guarantee. 

• Sustainability & Durability: Materials and production designed with longevity in mind; less mechanical complexity means lower maintenance.