Chaco Womens Z 1 Classic Sandals NRS Chaco Womens Z1 Classic Sandal Mottle Blue Chaco Women's Z1 Classic Sandals Earth Gray Outsiders Store UK Chaco Z1 Classic Sandals (For Women) Save 23% Women's Chaco Z1 Classic Sandal Shade Sorbet Eagle Eye Outfitters Chaco Women's Z1 Classic Sandal Grey Discount Chaco Ladies Sandals. History has it that when Mark Paigen designed and made the first Chaco sandal, a French friend described it as Zee One and so that style became the Z 1. That sandal became an icon, renowned for its durability and comfort, ensuring it a dedicated following. With a reassuring weight, this sandal is deserving of its title as an original, whilst being extremely comfortable; developed to support your feet on any terrain. Here at Outsiders, weve never worn a more comfortable sandal, I suppose you could count us amongst the converted.