Chair match

Upholstered backrest with self-adapting lumbar support and neck rest

Backrest

Available with or without armrests

Armrests

Available in 120 variants

Colours and materials

Couple of hours

Several hours

All day

smaller

1.50 - 1.60

1.60 - 1.70

1.70 - 1.80

1.80 - 1.90

taller

Desk oriented

Upright position

Dynamic sitting

Relaxed, leaned back position

No extra breathability

Moderate breathability

Maximum breathability

Minimal padding

Medium padding

Extra padding

Maximum padding

Fixed armrests

Adjustable armrests

No armrests

With its self-adapting synchronised mechanism, ACX offers maximum comfort without any need for adjustments other than seat height. ACX is designed to ensure a long life cycle with the lowest carbon footprint possible. The upholstered back of ACX Pad High is equipped with a self-adjusting lumbar support. An innovative neck rest – which is also self-adjusting – not only supports the sitter's head and neck when leaning back, but also helps them to maintain a level field of vision. This relieves the neck muscles. The ACX Pad High fabric cover comes in a large selection of colours and can be removed and refitted at any time, making it easier to clean or replace.

The architect and designer Antonio Citterio, who lives and works in Milan, has collaborated with Vitra since 1988. Together they have produced a series of products for homes and offices.

Antonio Citterio

ACX Pad High