- Full leather construction - Square toe - Zipper in back with logo engraved puller - 6,5 cm heel Materials Moon Airbrushed Leather Grey Over the years, Marine Serre has learned to master leather, favoring it as a cornerstone material of the house. The Nappa leather has a smooth supple hand and features our iconic Moon all over motif in a special print that gradually unveils it in different shades all across its surface. The leather is tanned from lambskin and is incredibly soft to the touch, and sourced from a high-end Italian leather tanner that is LWG certified. 100% Cow Skin