FN-OJ-DB001 12.5oz BLACK DENIM JACKET-40's MODEL

The Flat Head 12.5oz Black Denim Jacket (FN-OJ-DB001) is an iconic vintage denim jacket with a classic 1940s silhouette – crafted from genuine black selvedge denim that gains character with every wear. Ideal for fans of authentic Japanese denim workwear who value high-quality materials, durable details, and a deep, individual patina.

This denim jacket uses 12.5oz original black denim with a black-dyed warp and natural-colored weft. This creates a powerful contrast as it shrinks and ages , developing a distinctive personality and depth of look over time.

With a classic 40's workwear silhouette, robust metal details, and a one-wash treatment, the jacket is immediately comfortable to wear while also offering the potential for a distinctive aging through everyday use.

12.5oz Original Selvedge Black Denim

Made from a black warp thread and natural-colored weft thread , woven on traditional shuttle looms – for unique texture, depth and wear-related contrasts.

Vintage-inspired 1940s silhouette

Classic work jacket cut with authentic proportions and details like chest pockets – perfect as a statement piece in any casual or denim combination.

Original metal hardware

Heavy iron buttons and individually branded copper rivets ensure robust durability and a stylish vintage touch that develops patina over time.

One-Wash Finish

The one-wash treatment minimizes shrinkage and makes the jacket immediately wearable – without unpleasant stiffness.

Leather patch with iconic branding

A high-quality leather patch on the back adds typical heritage charm and underlines the premium quality.

Why this denim jacket?

• Authentic vintage 40s workwear silhouette
• Deeper, more sophisticated look thanks to black selvedge denim
• Instantly wearable thanks to a one-wash finish
• High-quality metal hardware & leather patch
• Perfectly combinable with jeans or chinos for modern everyday life