Herman Miller's Mirra 2 chair is an ergonomic moving chair, designed for users who move quickly from individual to collaborative work in an increasingly dynamic environment. The Mirra 2 sleek design provides a sophisticated profile and a perception of lightness in any environment. It features a passive PostureFit sacral support to ensure correct alignment of the spine. It is an agile seat with a sustainable design – each element is essential to use the fewest materials, with a state-of-the-art performance. Backrest: butterfly (reticulated fabric and polymer) or triflex polymer. Available in a wide range of fabrics, rear ring structure colours, and base finishes to provide maximum customisation.