Chaco is proud to present the updated Z/Sandal Collection, featuring upgraded tread designs and increased traction. More traction, more comfort, more possibilities. Proven performance made even better. The iconic Z/Sandal with enhanced traction and cushion comfort. Features Chaco's proprietary ChacoGrip rubber compound crafted by the brand with consumers' needs in mind. ChacoGrip leverages major R&D advances in wet traction for the highest degree of grip on slick and slimy surfaces. Increased surface area in the toe and heel as well as new tread designs offer better balance of pathing and lugs to grip surfaces and divert moisture. New tread designs strike a perfect balance between low-profile silhouette and performance grip. ChacoGrip is completely non-marking.