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The Flat Head

WRJ-53B Horsehide Asymmetrical Motorcycle Jacket

Attention: As you may have heard, The Flat Head brand, as we know it, will no longer be producing denim, shirting, outerwear, etc.  Please be mindful when perusing our Flat Head offerings that inventory going forward is extremely limited.  We're happy to make every effort to special order any item currently out of stock, though we cannot guarantee availability.  Please direct all inquiries to

The Flat Head WRJ-53B Horsehide Asymmetrical Motorcycle Jacket with signature D-Pocket is one of the most beautiful leather jackets we've ever seen.  For lack of better words, it's one of the most exquisitely made single items I've ever seen/ touched/ put on my body. Definitely chock-full of authentic reproduction details, but updated in a modern slim fit. Without a doubt, this is an heirloom investment piece. Model is 5'10", 175 lbs wearing size Medium. 


-Made of 1.3mm thick horsehide from Japan's Shinki Tannery

-Horsehide is vegetable based dye tanned 

-Semi-aniline finish, a process that retains natural characteristics of the horsehide and makes it more durable by combining dye and pigments

-Soft sateen lining throughout body & sleeves

-Flat Head produced & branded nickel snaps and zips

-100% iron, Flat Head branded 'Uchi-Nuki' buckle (meaning "hit and go" because it fastens quickly)

-Asymmetrical motorcycle silhouette w/ side cinch buckles, gusseted shoulders, front D-pocket w/ zippered side & chest pockets and interior chest pocket, epaulets at shoulders

-Model no. WRJ-53B


Dark Brown (Appears black to begin, but leather will patina and fade to rich browns)


Made in Japan

Sizing Recommendations:

This style is slim, tailored and true to size.


Size Chest Shoulders Front Length Sleeve Length
M 19.5 17.75 24 24.5
L 20.25 18.75 25.5 25.75