Isivina - White CayakOur white Isivina leather toe loop sandals have been hand stitched for comfort and strength and features an intricately designed upper. Without the use of a hard insole board in the Vitto unit, we are able to achieve extra flexibility and comfort. The aircell lining is fully breathable whilst the memory foam insole provides a relaxed feel against the foot. The Vitto sole has been made out of PU (polyurethane) which is both light and flexible and