Mirra® has an AireWeave™ seat-suspension material that is lightweight and breathable and evenly distributes the user's weight over the seat of the chair. The TriFlex™ back gives flexible and continuous support while allowing airflow. Mirra’s Harmonic™ tilt provides continuous balance and lets the body recline naturally, pivoting at the ankles, knees and hips. User-adjustable lumbar support version including passive PostureFit® at the base of the back, below the beltline, that helps achieve healthier posture and improved lower back comfort. Mirra is available with a FlexFront® seat edge that allows the user to incrementally adjust seat depth in five different positions, without moving the seat. Height adjustable, forward tilt, tilt limiter and castors for carpet floors