The men's ZX2 is discontinued and is no longer manufactured. Unlike the regular Z2, it has two straps. The big toe is held in place, and the foot is completely secured and doesn't move on the footbed, providing excellent mobility. I own many Chaco sandals, but this pair was only worn once around the neighborhood and has been stored after cleaning. There is almost no dirt, scratches, odor, or deterioration. The soles have minor dirt. There is also very little wear on the soles. Chaco Size: M9 27.0cm ZX2 Classic Black Type/Category: Sports Sandals (Search terms) 27cm 26.5 27.5 Color: Black z1 zx1 Vibram teva Luna Sandals The North Face keen Zero Sandals Hurricane "ORIGINAL UNIVERSAL" Teva "UNEEK" "NEW PORT H2" Keen