From SAS, the Nudu Cork Heel Strap Sandals feature: Cork upper with decorative stitching Adjustable buckled sling strap Two-point adjustable hook and loop straps Textile lining Broad, Contoured Footbed: Broad contoured footbed with a soft Super Suede™ cover is molded so the natural arches and curves of your foot are cradled in the sandal This allows you to maximize the shock absorbing qualities of multilayers of comfort SAS Foot-Shape® Last: This special last follows the natural shape and contour of your foot, providing all-day comfort SAS All Day Comfort Sole: The wide sole base provides increased stability and maximum shock absorbency This feature, along with the contoured footbed and multi-layered insole, works to "rebound" every step and provide you with all-day cushioned comfort Polyurethane outsole for shock absorbtion, longevity, and all day comfort Approx. 1.37" heel Made in the USA