Chaco Women's Zvolv X Athletic Sandal 100% Jacquard Webbing Imported Rubber sole Double-strapped polyester jacquard webbing upper wraps around the foot and through the midsole for a customized fit Topographic textured grooves on footbed for traction Women's specific luvseat pu midsolewith extra-soft pu compound Z/volv outsolewith non-marking ecotread 25%-recycled rubber compound with 3mm z-inspired lugs