.03 Chair The .03 Chair by Vitra has a strong linearity and a flexible integral foam shell which adapts to the body. Add to Favorites Add to Binder Request a Quote Download PDF Manufacturer Vitra Dimensions 31"h x 15"w x 20.75"d Designer Maarten Van Severen Year Designed 1999 Specified Finish Integral polyurethane foam shell, back with integrated leaf springs, back legs in tubular steel, front legs in aluminium profile. When the sitter leans back, the upper part of the backrest yields slightly. Built-in leaf springs give added resilience to the backrest and return it to the original position when pressure is removed. This makes .03 so unexpectedly comfortable.