Blue refabric
Rooted in Japan’s high-quality textiles and a commitment to precise craftsmanship. Originally developed as a ROCOCO exclusive line for JAPAN BLUE JEANS, the brand is relaunched in 2026 under the name “Blue refabric.”

Production is centered around partner factories of JAPAN BLUE JEANS. “Blue refabric” is a coined term combining “Blue”—representing Japanese denim—and “Refabric,” a blend of “Republic” and “Fabric.” Inspired by the idea of a “Blue Republic,” the brand honors Japan’s rich textile culture while offering garments that quietly elevate the individuality of the wearer.

Crafted primarily from premium denim sourced in Okayama, each piece is carefully made in trusted factories across Japan. The designs strike a balance between minimalism and strength, bringing out the natural character and texture of the fabric. From Japan—a nation of textiles—to the world, Blue refabric presents a new standard shaped by respect for Japanese craftsmanship.





If you prefer more room through the calves, we recommend choosing one size up, as the silhouette tapers slim from the knee to the hem.





8oz Selvedge Denim—Lightweight with Character
The fabric uses 8oz selvedge denim woven on vintage shuttle looms. Though lightweight, it offers reliable durability while delivering a light and comfortable feel.

Its breathable construction makes it suitable even for warmer seasons. The deep indigo tone gradually develops rich fading and natural wear patterns over time, allowing you to enjoy the unique aging process of denim. A fabric that balances lightness with the pleasure of personal wear and long-term evolution.





The design follows the classic five-pocket construction that defines traditional denim. The front features a zip fly for smooth and practical daily use.

Punched rivets add a subtle rugged accent, enhancing the vintage-inspired character.





The leather patch is made from cowhide, a detail that gains depth and character with wear.



A label on the inside signifies that the garment was produced at a partner factory of JAPAN BLUE JEANS.



When the hem is rolled up, the red selvedge line—an understated sign of fabric woven on a vintage shuttle loom—subtly appears, adding a refined, effortless touch to the styling.





A semi-wide tapered silhouette that flatters all body types
Designed with ease through the hips and thighs, and a slightly stronger taper from the knee to the hem, this semi-wide silhouette naturally covers the thigh area while creating a clean, refined line.

The cropped length reveals the ankle just enough, adding a light and balanced impression even in warmer seasons. It pairs effortlessly with sneakers, while also adapting to more refined styling when worn with leather shoes.

Versatile and easy to wear across different body types, this is a dependable piece suited for a wide range of styling—from casual to more polished looks.