Cosm - office chair on castors, high back, graphite color

The Cosm Chair by Herman Miller with a high back is the perfect fusion of aesthetics and ergonomics — comfort and practicality in one design.

Thanks to its advanced engineering and responsive structure, the chair instantly adapts to your every movement, intuitively adjusting to your posture in real time. No matter who used it before, the Cosm retains its original shape and never deforms — always ready to deliver the same effortless support.

Its construction naturally adapts to each sitter’s height and weight, while the creative design promotes optimal posture and lasting comfort. The Cosm Chair is exceptionally durable, featuring a wide, gently contoured backrest and a spacious seat. Inside the frame, a flexible suspension membrane provides breathable support, ensuring airflow and continuous comfort throughout the day.

Features

Auto-Harmonic Mechanism
The unique Auto-Harmonic Tilt mechanism instantly and automatically adjusts to every user, providing perfectly balanced posture support and effortless comfort — no manual tuning required.

Full Spine Support
The seamless, breathable Intercept™ fabric doesn’t trap dust and allows free airflow, preventing overheating even during long sitting sessions. The chair delivers complete dynamic spinal support, naturally adapting to your body’s shape. Its extended high backrest supports not only the lower back but also the cervical (neck) area — keeping your entire spine aligned and at ease.

Smooth Recline Motion
The chair’s gentle, responsive tilt encourages subtle rocking while you work, promoting circulation and preventing fatigue. This natural movement keeps your body energized and your back tension-free, even after long hours of focus.

No Memory — Always Like New
The Cosm’s seat mesh retains no deformations after use. It instantly returns to its original shape, never stretching or sagging, maintaining its pristine look and feel for years.

Flexible Frame
The slim yet resilient frame provides full support even when you recline, allowing your upper body to move freely while staying perfectly balanced.

Height Adjustment
By pressing the lever on the right side, you can easily adjust the seat height. This is the only manual adjustment on the Cosm Chair, as everything else intuitively adapts to your body. The chair is available in three height options, allowing you to choose the one that best suits your build.

For optimal posture, your knees should remain at a 90-degree angle — ensuring proper alignment and all-day comfort.

Adjustable Armrests
The chair is equipped with wide, comfortable armrests whose height can be easily adjusted. By pressing the button on the inner side of the armrest, you can raise or lower it to find your perfect ergonomic position and enjoy personalized support throughout the day.

Floor-Friendly Casters
The chair’s base is equipped with C7 65 mm casters designed specifically for hard floors — they glide smoothly without scratching or damaging the surfac

Materials & Specifications

Article: Cosm FLC163SFH
Frame: Aluminum / Plastic
Seat: Intercept™ fabric
Armrests: Vinyl
Base: Graphite, five-star design
Color: Black (frame, base, and body)
Casters: C7 65 mm – for hard floor surfaces
Official Warranty: 12 years