Backrest:
The high-back version has a height-adjustable headrest and lumbar support. The backrest frame is slim, made of black polyamide plastic, and features polyester mesh for ventilation.
Armrest:
The Expressa chair offers 3-way adjustable armrests, with an option for fixed armrests.
Seat:
The seat is adjustable in depth and height, with a molded foam and shell structure.
Mechanism:
The chair incorporates a weight-sensing mechanism that automatically adjusts recline resistance.
Base:
The standard base is black molded polypropylene, and the chair comes with 50mm dual-wheel castors.
Mechanism Options:
The chair has a knee-tilt mechanism, and some models offer a spring head (SH) option.
Base Options:
The chair has an ALM base (polished or black).