Herman Miller Cosm Leaf Arm Chairs

The Innovation Behind Studio 7.5’s Leaf Arm Design

When Berlin-based Studio 7.5 designed the Herman Miller Cosm, they set out to rethink traditional chair arms. The result was the Leaf Arm, a unique, paddle-shaped cradle upholstered in the same breathable Intercept mesh as the rest of the chair. Its angled form supports your forearms naturally when reclining, typing, or holding devices, preventing pressure points at the elbow and eliminating the need for manual height adjustments.

Ergonomic Highlights

Cradled Forearm Support: Softly angled mesh cradles support your elbows, making it comfortable to hold mobile devices or lean back during long calls.

Desk-Edge Clearance: The soft, sloping front profile slides cleanly under desks without catching or damaging table fronts.

Auto-Harmonic Weight Calibration: The built-in mechanical gearbox automatically measures your body weight to deliver fluid recline resistance with zero manual adjustments.

Monochromatic Uniform Finish: The Leaf Arm structure and mesh match the chair frame, base, and castors in single-tone hues like Graphite, Carbon, Mineral, Nightfall, Glacier, and Canyon.

Cosm Arm Styles

Understanding how leaf arms compare to other Cosm options:

Leaf Arms: Purpose-designed mesh cradles optimized for comfortable device handling, smooth desk clearance, and recline comfort.

Height-Adjustable Arms: Multi-position vertical adjustment for users who want to set custom forearm height.

Fixed Arms: Minimalist, rigid armrests for clean, standard desk tasking.

Armless: Compact design allowing the chair to slide fully beneath low-clearance workstations.