Both the warp and weft threads are indigo dyed denim, andby layering mud dyeing using the ancient dyeing technique [Amami mud dyeing], D'Artisan has created this denim in imitation of indigo mud dyeing.The indigo and Amami mud overlap to approach black, andthe blue and brown tones that are different from the solid black color give the black depth. This denim, which has a careful and beautiful finishmade by the hands of skilled craftsmen, is imbued with the nature of Amami Oshima and the history of the people that has been passed down since ancient times . This denim can be said to be a gift of rich nature that nurtures the heart from the earth, the mother of the earth .  • 18oz unsanforized double indigo selvedge denim. • Traditional Amami Dorozome mud-dyed finish• Hand-dyed by Shokunin artisans in Amami Oshima• Regular straight fit• 100% cotton construction• One-wash treatment• 4-button fly with original SDA buttons• Selvedge button fly construction• Engraved copper male/female rivets• Herringbone pocket bags• Fifth pocket selvedge detail• Signature SDA back pocket stitching• Special "Amami Dorozome" leather patch• Unique color depth with blue and brown undertones• 45th anniversary limited edition• Made in Japan