Boncoura 15oz Selvedge Cinch Back Denim - Regular Straight Fit

- Boncoura’s Cinch Back denim is inspired by vintage jeans from around 1936–1937, a period when jeans were going through noticeable changes in both construction and detail. Starting in 1936, several updates appeared to improve durability and practicality. One of the most well-known changes was the shift from exposed back pocket rivets to “Concealed Copper Rivets,” as the exposed metal was said to scratch saddles and furniture.

Another change from this period was the removal of suspender buttons, as more people began wearing belts instead. The cinch back still remained for a time, but if customers felt they did not need the detail, it was often cut off before the jeans were worn. It is said that denim stores at the time even kept scissors ready for this purpose — a small but fascinating piece of jeans history.

The Cinch Back model uses Boncoura’s special “Ikemen” denim, developed from the yarn stage with careful attention to cotton selection, blending ratio, and spinning method. By combining different types of cotton, Boncoura makes full use of the unique qualities of each fiber.

This approach gives the fabric a strong sense of structure and resilience. The 15oz denim is slowly woven on vintage shuttle looms under low tension, allowing it to retain a natural texture and depth. In Japanese, this handfeel is often described as “koshi,” a term used to express firmness with elasticity — similar to the satisfying bite of well-made udon noodles.

The silhouette of the Cinch Back sits roughly between the 66 and the XX, offering a balanced regular straight fit that is easy to style. Combined with its strong vintage details, it becomes one of the most distinctive models in the Boncoura lineup.