Take a poll of river guides and you will find that Chaco's performance line of sandals is considered the gold standard for rough amphibious use. The Chaco Z/2 women's sandal is one of those models and thanks to its toe strap feature is perhaps the most performance-oriented model of the line. The pull-through strap feature allows for tightening down on the big toe or any other portion of the foot as loosely or as firmly as possible providing increased forefoot precision in ever-changing terrain. Whether it's time to go back in the water or hike a few miles with wet straps the Chaco Z/2 sandal's soft polyester webbing dries faster than nylon and maintains a consistent fit in all conditions. But perhaps the best features are what lie underfoot. First a BioCentric™ footbed contour supports the foot for a healthy stride. Long a passion of the designers at Chaco this footbed platform carries the seal of approval from the American Podiatric Medical Association. And for unmatched all-terrain traction and durability a Vibram® Unaweep outsole on the Chaco Z/2 sandal grips anything from rounded river rocks to crushed pumice.