MUK LUKS just gave opal a whole new look. The Women's Opal zip up boot was created with your inner fashionista in mind. The three different accenting straps has a double take effect that will make this your new favorite chunky heel style! This boot is made of 100% PU Faux Leather with 100% Polyester fur lining. Spot Clean and wipe dry. Made in China. Material: Polyester, Faux Leather.