“Decimal” means “ten” – in this case, all ten toes are independently separated from one another and free to move with the natural biomechanics of your foot. The Sazzi Women's Decimal Sandal also utilizes our patent pending Quad Post Lateral Stability system or “QPLS”. This technology employs four toe posts between five toes on each foot as internal foot controls. The QPLS system, in combination with five individual toe platforms, provides each foot five tactile surfaces for a near-barefoot ergonomic connection to the Earth. The Decimal is the ideal sandal for active people seeking revolutionary performance, freedom and comfort in an open heel sandal.