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- “Kurogane” is a word traditionally used in Japanese to describe iron. In ancient times, it often appeared in expressions such as “iron fortress” or “iron castle,” symbolizing something strong, solid, and nearly unbreakable.
In modern usage, “Kurogane” can also describe a particular tone of black. Compared to ordinary black, it suggests a deeper and more layered shade, carrying a sense of mystery and depth while still retaining the impression of strength and firmness, much like iron itself. Boncoura names this unique shade of black “Kurogane,” reflecting the brand’s craftsmanship and expressing a denim that feels powerful, solid, and full of character.
The denim is developed from the yarn stage, with careful attention given to the origin and blending of the cotton, as well as the spinning method. The 15oz denim is slowly woven on vintage shuttle looms under low tension, allowing the fabric to retain a natural texture and depth.
The yarn itself is specially developed through Boncoura’s careful selection and blending of different types of cotton, making full use of the unique characteristics of each fiber. This approach gives the fabric a strong sense of structure and resilience. In Japanese, we describe this quality as “koshi,” a word used to express firmness with elasticity — similar to the satisfying bite of well-made udon noodles.
The result is a denim that feels firm and solid at first, yet gradually reveals a soft and natural fit against the skin. It is the kind of texture and balance that is difficult to describe in words — something that truly needs to be experienced when worn.
This special denim is what Boncoura calls “Ikemen Denim.” In Japanese, ikemen usually refers to a handsome man, but here it is used as a playful word choice. The word “men” also sounds the same as cotton in Japanese, while “ike” can imply something excellent or superb. By combining the two, Boncoura created the name “Ikemen Denim” to express a cotton fabric that is truly outstanding — an example of the brand’s subtle Osaka-style humor.
| Material: | 100% Cotton |
| Weight: | 15 oz |
| Weaving Method: | Twill Weave on Old Shuttle Loom |
| Dyeing: | Warp - Rope-Dyed Black / Weft - Black |
| Fabric Finish: | Unsanforized, One-Washed |
| Silhouette: | Classic Straight Fit |
| Origin: | Made in Japan |
| Details: | |
| - 15oz Kurogane "Ikemen" Selvedge Denim | |
| - Custom Boncoura Black Lacquered Iron Buttons | |
| - Custom Copper Rivets | |
| - Hidden Rivets | |
| - Special Tanned Deerskin Leather Patch | |
| - V-Stitching & Offset Belt Loop | |
| - Waistband Label with Vintage Typewriter Character Stamped | |
| - Black Heather Chambray Pocket Bags | |
| - All-Cotton Thread Construction | |
| Model: | |
| - 178 cm / 68 kg ( 5'10" / 150 lbs ) — Wearing Size: 30 | |
| Size | 28 | 30 | 32 | 34 | 36 | 38 |
|---|---|---|---|---|---|---|
| Waist | 76 | 83 | 87 | 95 | 99 | 102 |
| Hip | 110 | 114 | 120 | 126 | 130 | 136 |
| Front Rise | 28.5 | 29 | 29.5 | 30 | 30.5 | 31 |
| Back Rise | 37.5 | 38.5 | 39 | 40.5 | 41 | 42 |
| Thigh | 30 | 32 | 34 | 36 | 37 | 38.5 |
| Knee | 23.5 | 24.5 | 25.5 | 25.5 | 26 | 27 |
| Leg Opening | 21 | 21.5 | 22 | 22 | 23 | 23.5 |
| Inseam | 78.5 | 78.5 | 78.5 | 78.5 | 78.5 | 78.5 |
• Measurements are based on one-washed denim.
• Slight variations may occur due to manual measurement and washing.
- Measure straight across from shoulder seam to shoulder seam on the back.
- Measure straight across the front of the garment, from armpit to armpit.For size chart reference, chest measurement is shown as full circumference ( flat measurement x 2 ).
- Measure across the narrowest part of the shirt — from seam to seam — between the chest and the hem.
- Measure straight across the bottom edge of the shirt, from one side seam to the other — just above the curved hem.
- Measure from the top of the shoulder seam straight to the end of the cuff.
- Measure from seam of collar all the way down to the end of the cuff.
- Measure vertically from the shoulder seam down to the bottom of the armhole seam.
- Measure from the center of the base of the collar (just below the collar band) straight down to the bottom hem.
- Measure straight across the top of the waistband from edge to edge, then double the measurement.
- Measure the front rise from the crotch seam straight up to the top of the front waistband.
- Measure from the crotch seam to the top of the back waistband.
- Measure 7.5 cm (or 3 inches) up from the crotch seam, then go straight across from side to side while laid flat, then double the measurement.
- Measure horizontally from the crotch seam straight out to the outer edge of the thigh.
- Measure 33 cm (or 13 inches) down from the crotch seam along the inside leg seam.
- Measure straight across the leg from one side to the other.
- Measure from the crotch stitch all the way to the end of the leg.
- Measure straight across the bottom cuff — from one side of the leg opening to the other.
– Free domestic shipping on orders over ¥20,000 ( Tax included ).
– Free worldwide shipping is available, with thresholds varying by location.
– For more information, please refer to our Shipping Policy and Return & Refund Policy.