Tracked Delivery

Hong Kong & overseas: 7–14 business days

Quality Guarantee

6-year warranty for kids Randoseru

Trusted choice

Recognized by the Japan Bag Association. Handmade in Japan since 1957

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Adult wearing a black Japanese randoseru backpack, holding a bicycle, white background

Reinvented backpack for adults

A durable adult backpack blending the traditional Randoseru's strength with a fresh design.

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Hand holding a classic brown leather Japanese randoseru backpack in a modern hallway

Premium Work Bag

Redefining the Modern Executive: The Adult Randoseru


Step away from the generic briefcase. The Adult Randoseru by Craftsupply brings a structured, architectural silhouette to your professional wardrobe. Handcrafted by Japanese artisans, this deep mahogany leather piece bridges the gap between nostalgic heritage and contemporary business formal. It’s not just a bag; it’s a signature of your commitment to quality.

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Classic brown Japanese Randoseru backpack on a wooden bench with cherry blossoms

Minimalist Design

Built for a Lifetime: Japanese Artisan Craftsmanship

True luxury lies in longevity. Our Adult Randoseru is engineered to withstand the rigors of city life while developing a unique patina over time. In a world of fast fashion, choose a timeless investment that matures with you.

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Japanese craftsman inspecting premium leather in a workshop for handcrafted backpacks

Our Material

About Tochigi Leather

Established in 1937. They are highly rated overseas as a tannery that specializes in full-vegetable tanning leather. They succeeded with their branding by becoming well known to leather lovers by their “red tag” that guarantees the quality.

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Polished burgundy shell cordovan horsehide leather on a craft workbench

Our Material

About Shell Cordovan

Known in Japan as the “jewel of leather”, shell cordovan is the most precious and luxurious leather of all. It is cut from a thin, dense layer found only in a horse’s rump, so each hide yields very little. After months of tanning and hand polishing, it takes on a deep, glass-like shine and is several times denser than cowhide. Murase Kabanko uses it on the flap of its highest-grade Takumi Cordovan randoseru.

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About CraftSupply

We specialize in premium Randoseru and backpacks crafted by a renowned Nagoya manufacturer since 1957. In partnership with them, we've developed a contemporary collection of adult backpacks that blend functionality with modern design. We also curate an exclusive selection of luxury Cordovan accessories for discerning customers.