Boncoura 8W "kōruten" Corduroy 41 Trousers - Brown

- The Boncoura 41 Corduroy Trousers take inspiration from the classic “41 Khaki”, a military trouser design that traces its origins back to 1941, when the U.S. Army developed new functional uniforms during the early years of World War II.

Unlike earlier riding-style military pants such as jodhpurs or breeches, the 41 Khaki introduced a silhouette much closer to modern trousers. With its high rise and relaxed, wide fit, it became a highly influential design that continues to shape classic trouser styles today.

The Boncoura 41 Corduroy features custom 8-wale Japanese corduroy, traditionally known in Japan as “kōruten.” This fabric is specially produced in the historic Enshu textile region in Hamamatsu, Shizuoka Prefecture, an area long known for its high-quality textile production.

While corduroy and kōruten share the same basic pile structure, the difference lies largely in production culture and finishing techniques rather than the weaving method itself. Japanese kōruten often undergoes unique finishing processes such as extensive washing and specialized treatments, giving the fabric a softer hand, pronounced cords, and a deeper, richer color tone.

While based on the vintage details of the original 41 Khaki trousers, Boncoura carefully refines the silhouette with a curved outseam, comfortable room through the thigh, and a gently tapered leg.

The result is a pair of trousers that looks clean and elegant when worn, offering a refined appearance that moves away from the rugged military feel. It is a quiet expression of Boncoura’s design philosophy — combining historical inspiration with understated sophistication.

Notes:

In corduroy, “wale” refers to the number of vertical cords per inch of fabric. A lower wale number means thicker cords, while a higher wale number creates finer ridges.

“Kōruten” is the traditional Japanese name for corduroy, particularly fabrics produced in the Enshu textile region of Japan. The name combines “kōr,” derived from the French word "corde" meaning cord or ridge, and “ten,” referring to the "Tenryu River" whose water has long been used in local textile finishing.