ID Trim is an office chair by Antonio Citterio for Vitra. Height-adjustable backrest in polyamide with padded cushion in polyurethane foam. Seat in polyurethane foam and fabric or leather upholstery. Armrest supports in polished aluminium. ID Trim provides many customizations: the chair is available with ring armrests in polished die-cast aluminium (with or without height adjustment), for use in conference areas. For height-adjustable ring armrests, armrest supports in polyamide are matched to the frame colour (basic dark or soft grey). Five-star base in polyamide (basic dark) or polished die-cast aluminium, equipped with double castors (Ø 60 mm) or glides. Available also with 2D armrests (with adjustable height and width) or 3D armrests (with adjustable height, width and depth and 360° swivel function). ID Trim conveys a sense of classic elegance and quality craftsmanship. The self-supporting backrest construction consists of a fabric or leather cover stretched across the frame. Mechanical unit: FlowMotion or ProMatic mechanism. Both mechanisms can be locked in the upright sitting position. Mechanical unit matches the frame colour (basic dark or soft grey).1. FlowMotion: optionally available with or without synchronised forward tilt (can be disengaged) and with or without seat depth adjustment. Individual adjustment of backrest resistance and forward tilt.2. ProMatic: mechanism automatically adjusts to the user's weight, without forward tilt and without seat depth adjustment. Only the seat height requires manual adjustment. ProMatic does not bear the Ergonomic Seal of Approval.