Double Helix - Classic 1930s Black

Where it’s made: Made in Japan
What it’s made from: 1.3–1.5 mm vegetable-tanned horsehide with a semi-aniline finish, 100% cotton lining
Fit description: Regular, slightly tailored fit with a shorter body, inspired by 1930s leather sports jackets

The Double Helix Classic 1930s Black takes inspiration from American leather sports jackets of the 1930s, a period when practical outerwear began adopting zipper fastenings and more streamlined silhouettes. Made in Japan from substantial vegetable-tanned horsehide, the jacket combines traditional construction with carefully selected leather.

The leather features a tea-core finish, where the black surface colour does not fully penetrate the hide. With regular wear, the brown leather underneath gradually becomes visible around the seams, creases and other areas of friction. The semi-aniline finish retains much of the leather's natural grain and character, while the substantial horsehide gradually softens and moulds to the wearer's body.

The jacket features a traditional shirt-style collar, a brass Waldes front zipper, a zipped chest pocket and two angled front pockets. Adjustable side buckles allow the waist to be tightened, while genuine buffalo horn buttons at the cuffs and an additional interior pocket complete the design.

The slightly cropped body and gently tailored silhouette reflect the proportions of original 1930s sports jackets, making it particularly well suited to higher-rise trousers and jeans.

Jonas is 183 cm / 75 kg and wears size 44.