Original Tuscan leather from Pisa, produced and finished to an age-old process. The upper leather is tanned traditionally using pure vegetable dye and barrel dyed down to the fibre. The characteristic two-tone effect is achieved by applying the darker colour shade to the raised areas of the leatherin a hand finished process. The strap is given its incomparable delicate gleam in a final manual process entrusted to an especially experienced tanner master. Siena is a HIRSCH reference to the secrets of an age-old Italian craft.