CHPT./// - J/J Jersey Jacket 1.31


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  • Warmer than a jersey, less hot and restrictive than a jacket
  • Bonded 3-layer fabric limits wind chill but allows enough air permeability to prevent overheating in milder conditions
  • Fabric drapes like a ski jumping suit yet maintains a soft hand with significant stretch
  • Industrial metal zipper with CHPT3 zipper pull
  • Embossed logos and woven label
  • Black reflex piping at rear hem
  • Weight: 256g
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The 1.31 Jersey/Jacket can be considered both a jersey and a jacket, being able to handle a large temperature range. The reason for this is the material used, it is a 3-ply fabric, meaning it is constructed by bonding three layers of differing fabrics together with a foam core. That core not only gives the 1.31 J/J its performance advantage but the unique look, it bears a striking resemblance to a 1980s diving jacket, or similarly a sci-fi biker jacket.

There is nothing else like it out there. The performance advantage is due to the fact the foam wicks the sweat away from the body while also providing wind protection without compromising the breathability, this is why it can handle such varying conditions. The piping around all the seams is there for performance reasons as it prevents the three fabrics separating at the edges where it has been cut, although there were purely practical reasons for this it has also added to the overall look of the J/J.

The cut of the J/J is more like a jersey than a jacket, allowing it to be more fitted than a jacket normally would be, there are three rear pockets and also a vertical chest pocket with a zipper closure. The zip for this pocket and the main zip are quite chunky yet lightweight, it made sense to have a zip that had a bit more presence than normal in order to fit with the aesthetic. The neck line is slightly higher than a jersey, more like a jacket, everything about this garment is difficult to define apart the performance, which has created its own definition the Jersey/Jacket.


CHPT3 clothing uses a tailoring system for its sizes. They use the physical chest or waist size as the garment size, i.e. if you have a 40" chest you need a 40" Jersey.

Please note while the CHPT3 range is not specifically designed for racing it is still a close fitting athletic design suitable for active cyclists.

Inch 36 38 39 40 41 42 44
cm 91.5 96.5 99 101.5 104 106.5 111.5