Topstar Office chair SITNESS 55, synchronous mechanism, with armrests, various covers. Covers

The SITNESS 55 fitness office chair features a comfortable synchronous mechanism that allows for simultaneous adjustment of the seat and backrest, automatically adapting to your sitting posture. This mechanism can be individually adjusted to your body weight and is continuously lockable. The height-adjustable backrest provides pleasant ventilation while sitting, thanks to the air-permeable lumbar area and breathable cover.

Additionally, the SITNESS 55 includes a highly upholstered molded foam seat and a patented Body-Balance-Tec® joint that enables three-dimensional mobility, making it ideal for movement-intensive and prolonged sitting.

Backrest specifications:

• Backrest height: 560 mm
• Height-adjustable
• Height-adjustment range: 80 mm
• Contour-shaped backrest with completely air-permeable lumbar region

Seat features and mechanism:

• Comfortable synchronous mechanism
• Comfortable molded foam seat with patented Body-Balance-Tec® joint for three-dimensional sitting
• Stepless seat height adjustment with top lift
• Seat dimensions: W 500 x D 460 x H 450-570 mm

Further details:

• Suitable for sitting for up to 8 hours
• Supports loads up to 110 kg
• Includes height-adjustable armrests
• Chrome-plated steel base
• Upholstery material: Nord Wool (70% virgin wool, 25% polyamide, 5% other fibers) or 100% Trevira, GS tested.