.03
Maarten Van Severen's 1998 flexible polyurethane chair with leaf springs in the back
380 × 790 × 525 mm
Source: technical drawing image — .03 non-stacking
1998
Description
Overview
Maarten Van Severen designed .03 in 1998. The slim seat shell uses resilient integral-skin polyurethane foam and flexes as the sitter leans back.

Construction
Leaf springs embedded in the backrest assist the controlled flex. Vitra offers stacking and non-stacking configurations and illustrates linking connectors and a trolley specified for up to twenty stacked chairs.
Non-stacking dimensions
- W380 × D525 × H790 mm
- 450 mm seat depth
- 370 mm seat width
Story
Comfort concealed in a reduced form
The chair's visual economy hides the movement of its back. The foam shell yields under the body while the internal leaf springs support the backward flex.
From workshop practice to Vitra production
Vitra began working with Maarten Van Severen in 1996, two years before .03. The product continues his focus on simple form and comfort.
