Cosm - office chair on castors, low back, graphite color 84501

The Cosm Chair by Herman Miller is the perfect blend of comfort and practicality, aesthetics and ergonomics. Its sophisticated engineering and heightened responsiveness allow it to instantly react to every subtle shift in your posture. No matter who used it before, the Cosm retains its original form — never sagging, never deforming.

When you sit in the Cosm, you experience effortless comfort every moment of the day. Inside the frame stretches a durable, breathable suspension membrane that promotes airflow and keeps you cool — even during long hours of focused work.

Specifications

Auto-Harmonic Mechanism
The unique Auto-Harmonic Tilt mechanism automatically and instantly adapts to any user, delivering perfectly balanced posture support and exceptional sitting comfort — no manual adjustments needed.

Full Spinal Support
The seamless, breathable Intercept™ fabric allows air to flow freely, keeping your body cool even during long sitting sessions. The chair naturally conforms to your shape, providing dynamic support for the entire spine and helping maintain a healthy posture.

Smooth Recline Motion
The Cosm moves with you — its gentle rocking motion promotes healthy blood circulation and prevents fatigue. You’ll feel relaxed and supported, even after hours of concentrated work.

No-Memory Design
After sitting, the mesh seat instantly returns to its original form. It doesn’t stretch, sag, or retain any marks, staying in perfect condition for years of use.

Flexible Frame
The slim yet strong frame provides continuous support during recline, allowing your upper body to move freely while maintaining ideal balance and posture.

Height Adjustment
The Cosm Chair offers just one manual adjustment — seat height. By pressing the lever on the right side, you can easily set the height to match your body. For proper posture, your knees should form a 90-degree angle, ensuring optimal comfort and ergonomic alignment.

Monochrome Design
Every element of the Cosm Chair is crafted in a single, uniform color. This minimalist approach creates a seamless, elegant aesthetic that integrates effortlessly into any interior style.

Adjustable Armrests
The chair features wide, comfortable armrests with adjustable height. By pressing the button on the inner side of the armrest, you can raise or lower it to your preferred position — providing personalized support for your arms and shoulders throughout the day.

Floor-Friendly Casters
The five-star base of the Cosm Chair is equipped with hard-floor casters that glide smoothly and quietly, leaving no scratches, marks, or damage on the surface — perfect for wood, laminate, or tile floors.

Materials & Specifications

Article: Cosm FLC143SFH G1 G1 G1 OC BK 84501
Frame: Aluminum / Plastic
Seat Material: Intercept™ fabric
Armrests: Vinyl
Base: Five-star graphite base
Color: Black (frame, base, and body)
Casters: C7 65 mm — designed for hard floor surfaces
Official Warranty: 12 years

We recommend taking the Cosm Chair for a test drive — to be 100% confident it’s the perfect ergonomic fit for your body, posture, and workspace.