The Samurai Jeans A301-AI “Kurozan” Belt is a remarkable example of Japanese leather craftsmanship, combining traditional techniques with distinctive materials rarely seen outside of Japan.

Crafted from vegetable-tanned Tochigi cowhide, one of the most respected leathers in Japan, this belt is dyed using Yamato natural indigo through multiple rounds of hand-dyeing. The result is a deep, rich blue tone with remarkable depth and character.

Known as “Kurozan” leather, this material has historical significance—traditionally used in samurai armor and still favored today in high-quality kendo equipment for its strength and resilience. The leather undergoes a specialized finishing process that enhances durability, scratch resistance, and color fastness, making it more resistant to fading and dye transfer than standard indigo-dyed leather.

At 4mm thick, the belt offers a substantial feel while remaining flexible and comfortable with wear. It is finished with solid brass hardware and a subtle Samurai Jeans stamp, reinforcing its heritage identity.

Built to age beautifully, the indigo-dyed leather will develop a unique patina over time, making each piece truly one of a kind.

Fit Notes: The most accurate way to determine your belt size is to measure an existing belt from the inner edge of the buckle (where it meets the leather) to the hole you use most often (typically the middle hole). We recommend checking our size chart to find your perfect size. In this case, the Kurozan belt runs small, so we strongly recommend sizing up.