Blue refabric
Blue refabric / Officer Tapered Trousers
The long-loved “Officer Tapered Trousers,” originally developed as a ROCOCO exclusive for JAPAN BLUE JEANS, returns under the newly rebranded Blue refabric line.
Designed with room through the hips and thighs, the tapered silhouette blends naturally into an adult wardrobe, from polished looks to everyday casual styling.
Thoughtful details, such as pocket design inspired by U.S. military officer trousers, reflect careful attention to construction.
Praised for its comfort thanks to added stretch and its clean appearance, this is a versatile pair suited to both casual and refined styling.
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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.
Refined fabric with comfort and elegance
The fabric is a stretch twill blend of cotton and polyester. It is mercerized before dyeing to achieve a subtle sheen and rich, vibrant color. It also features a subtle heathered effect created by the difference in dye uptake between cotton and polyester.
The fabric is produced by “COLLECT,” a textile manufacturer within the Japan Blue Group. It is woven in Ibara City, Okayama—an area known for its denim heritage—and dyed in Kojima, reflecting the quality and craftsmanship of Japanese textiles.
The front features a zip fly, along with a watch pocket and welt pockets for a clean finish.
Inspired by U.S. military officer trousers, only the left back pocket is finished with a flap.
The right side features a welt pocket, creating a well-balanced back silhouette. The outer seam is finished with an open seam with overlocked edges, while the inner seam is overlocked and pressed to one side with edge stitching, ensuring durability for heavy use.
A label on the inside signifies that the garment was produced at a partner factory of JAPAN BLUE JEANS.
A balanced silhouette that pairs with anything
A refined tapered silhouette that is neither too slim nor too wide. With a slightly relaxed fit through the hips and thighs and a gentle taper toward the hem, it delivers a clean look while maintaining comfort.
SIZE
※Check out the size guide for more accurate measurements.
Staff comment
| ●Staff Height/Weight: 165cm / 64kg Wearing size: 28 / 30 Body type: Slim Fit: Just right Length: Just right For a true fit, I would choose size 28. For a slightly more relaxed feel, size 30 works well. There is room around the hips, while the slim line toward the hem creates a clean and refined silhouette. |
| ●Staff Height/Weight: 171cm / 70kg Wearing size: 30 Body type: Standard Fit: Just right Length: Just right Size 30 fits perfectly. The added stretch allows for ease of movement, making the slim silhouette comfortable even when bending the knees. |
| ●Staff Height/Weight: 177cm / 73kg Wearing size: 32 / 34 Body type: Standard Fit: Just right Length: Just right Wearing size 32 gives a clean, sharp impression. The high-quality twill fabric from Okayama has a balanced weight with a supple feel. Choosing size 34 provides a bit more room, pairing well with more casual tops. |
| ●Staff Height/Weight: 181cm / 78kg Wearing size: 34 Body type: Solid Fit: Just right Length: Just right Even with a solid build, size 34 offers a comfortable fit without feeling restrictive. The design allows for moderate room through the thighs, maintaining a clean tapered line without tightness. |
SPEC
| Materials | 68% cotton, 30% polyester, 2% elastane |
|---|---|
| Country of Origin | JAPAN |
| Model Wearing | Wearing size 34 (178cm/70kg) |
| Care Instructions | ※Please note that the colours may look different from the real thing depending on your monitor environment. |
| Weight | 560g |
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