Humanscale Freedom Saddle stool is the most ergonomic, versatile and comfortable stool designed ever. Freedom designed a triangular cushion seat that resembles a saddle, that encourages the user to sit in a upright 'saddle' posture. This promotes keegan posture where the hips are open to help increase circulation. The posture a;sp reduces pressure points on the tailbone enabling long-term comfort. RRP £280.