The photos show the jacket after one full season of wear.

The leather used is 1.5mm full vegetable-tanned horsehide.
When new, it was honestly very stiff and carried a substantial weight.

But through wear, it gradually begins to conform to the curves of the body and the movement of the arms, transforming the once flat leather into something far more dimensional and alive.

Creases forming along the sleeves.
Natural shaping created by the bend of the arms.
Subtle tension appearing around the pocket openings.

Marks and expressions that can only be created through actual wear have slowly been engraved into this jacket over time.

What initially felt “heavy” and “stiff” eventually changes into something reassuring — a kind of comfort that only develops after long wear.

The design is based on 1930s American wool sports jackets.
Rather than feeling aggressive like a rider’s jacket, it was created to be a leather jacket that can be worn naturally in everyday life.

Unfortunately, this heavy 1.5mm specification is planned to be discontinued.

This winter, we plan to introduce a new 1.0mm version that is lighter and easier to wear.

For those searching for a sports jacket with the weight, presence, and atmosphere of vintage leather garments, this specification may be the last opportunity.

Please take a look.

J1007B 30s Sports Jacket
https://prequel.jp/en/products/j1007b-30s-sports-jacket