The leather note in perfumery is quite recent as it refers to the smell of the boots worb by Russian soldiers whose leather was proofed with birch tar. Leather usually has two facets, an animalic one made with castoreum or certain woods such as Atlas Cedarwood; and a smoky one created with pyrogenic essences such as cade, styrax or birch tar. Some synthetic materials such as IBQ or Suederal can amp up its texture, but we used Black Oud instead, known for its naturally… leathery smell.