Mark Adler Expert 8.7 grijze mesh ergonomische bureaustoel

The Mark Adler Expert 8.7 is an ergonomic office chair engineered for all-day comfort and dynamic support. Its breathable HD mesh backrest and contoured seat keep you cool and focused, while the adjustable lumbar support and 2D armrests adapt to your posture. With a robust Class 3 gas lift and a weight capacity of 130 kg, this chair is built to perform in demanding work environments.

Advantages

The Expert 8.7 combines a breathable mesh backrest with a fabric seat, ensuring optimal airflow and comfort during long hours. The Tilt Plus mechanism allows a smooth rocking motion with lockable positions, and the backrest reclines from 90° to 135° for relaxed breaks. Adjustable lumbar support and a height-and-tilt adjustable headrest provide personalized ergonomic alignment. Durable nylon composite base with smooth-rolling PU castors ensures stability and mobility on various floor types.

Suitable for

• Office professionals seeking ergonomic support for extended desk work
• Home office users needing a breathable, adjustable chair
• Gamers and content creators requiring comfort during long sessions
• Workspaces with hard floors, thanks to non-marking PU castors

Key specifications

• Breathable HD mesh backrest and fabric seat in grey
• Adjustable lumbar support and 2D armrests (height and rotation)
• Backrest recline: 90°–135° with Tilt Plus rocking mechanism
• Class 3 gas lift; seat height range: 450–550 mm
• Overall height range: 1200–1300 mm; seat dimensions: 500 x 500 mm
• Maximum weight capacity: 130 kg; net weight: 19 kg
• PU castors with 60 mm diameter; nylon composite base
• Self-assembly required

Recommendations

For optimal ergonomics, adjust the seat height so your feet rest flat on the floor and your knees form a 90° angle. Use the lumbar support to maintain the natural curve of your lower back, and set the headrest to support your neck during reclined positions. Regularly check and tighten all assembly bolts to ensure long-term stability.