The aesthetic hallmark of the .05 chair is its sleek, reductive shape. The resilient seat shell, made of integral skin foam with embedded leaf springs, is combined with a cantilever base that flexes slightly when the sitter leans back to provide an unexpected level of comfort. The .05 chair is suited for outdoor use and is also available in a stacking version.

https://www.vitra.com/en-as/product/details/05 

Dimensions: 40.7 x 49.3 x 83.9 (cm)