MBT"s newest women"s sandal with backstrap adjustability. Full grain leather upper with a microfiber lining and split leather sockliner. PU midsole with pivot is the balancing section underneath the metatarsus which requires an active rolling movement with every step. This activates a large number of stabilizing muscles throughout the whole body when walking or standing. Masai Sensor (Masai Barefoot Technology) creates a pleasant feeling of walking on a sandy beach or soft moss. Instantly offers a natural instability to which the body automatically reacts increasing muscle activity. Secure rubber outsole offers lightweight support and durability.