OLUKAI Pouli Sandal - Women's Leather Upper: Leather is finished with a vegetable tanning process then bonded seamlessly to genuine pig skin Also hand-sewn upper stitching, adjustable buckle for a customized fit, and leather edge burnishing Footbed: Leather is finished with a vegetable tanning process then lightly burnished Latex foam footbed adds padding, contour and anatomical support Outsole: High-quality, hard Vachetta leather outsole anatomically contoured for comfort and support