Seat upholstery

Ergonomically shaped seat made of polyurethane cold foam. Fabrics and leathers in the colours of the Bene Spectrum.

Backrest versions

Three backrest options are available for the B_Run swivel chair:

  1. Backrest with polypropylen membrane
    The ergonomically shaped plastic back made of polypropylene is highly flexible and pleasant to the touch. The perforation makes it flexible and ensures good air circulation. The frame gives the back the stability it needs.
    Plastic colours: Black.
  2. Mesh backrest
    Self-supporting functional fabric made of 100% polyester offers optimal back support and ensures good air circulation. The circumferential plastic frame gives the back stability and is directly connected to the inner workings.
    Standard range includes seven mesh colours.
  3. Upholstered backrest
    Ergonomically shaped upholstered back made of polyurethane cold foam. The structured polypropylen back tray is non-sensitive, scratch-resistant and easy to wipe off.
    Fabrics and leathers in the colours of the Bene Spectrum.


Available options of armrests:

  • Fixed armrests
    Classic armrests with minimal design and embossed surface – polypropylene plastic in black.
  • Loop armrests
    Stylish ring-shaped armrests that imparts a feeling of exclusivity. The surface is structured and pleasent to touch – polypropylene plastic in black.
  • 2D / 3D armrests
    2D: Adjustable height and width.
    3D: Adjustable height, width and depth.
    Soft padding with structured surface and pleasent touch – polyamide plastic in black.

Chair base

Plastic polyamide fibreglass-reinforced, black. Optional: die-cast aluminium in black and powder-coated aluminium-coloured or polished aluminium.


Double castors with load-dependent braking mechanism according to DIN EN 12529, optionally with hard or soft contact surface, depending on floor.

Lumbar support

An important option for a healthy back.
The height of the lumbar support can be adjusted to give your back additional support in the lumbar region. Ergonomically-shaped polymer pad.

 Adjustment range: 100mm on chairs with mesh back / 80mm on chairs with upholstered back.


Clothes hanger / Head rest

Optional. Polypropylene plastic in black.


Dimensions [mm]