The worlds finest bag, requires the worlds finest craftsmanship and Hermes artisans are masters without peers. Each bag is estimated to require 48 man -hours to create from start to finish with of course only the finest materials being used. Crocodile, alligator, lizard, ostrich, goat and calf skins are tanned to perfection created a soft, buttery feel that Birkin owners have come to love and expect.